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If your water source is a river and there are cities upstream of where you live, then it is very likely that you are drinking water that contains trace amounts of pharmaceuticals. Studies have shown that these can form a toxic mix of chemicals that affect human cell growth. And one chemical, methadone, can turn into cancer-causing NDMA at levels that may cause cancer. Chemicals such as estrogen, testosterone, cocaine, and ibuprofen are commonly present.


People call me every day to review their water reports and discuss the type of water purification system they may need. i base my recommendations on local water reports because in my view it is the only way to know what you need. Some people call and say they want to remove everything, but 'everything' may or may not be in your water. To buy the correct water filter for your home it is advisable to start by studying your local water source. And that is the first thing I look for in a water report. Where is your water coming from? Water comes from mountains, it comes from lakes, it comes from rivers, and it comes from wells. Each of these sources has a different set of issues.

This article discusses the issue of pharmaceuticals in river water.

If your water source is a river and there are cities upstream of you then there are trace amounts of pharmaceuticals in your water. Because these amounts are very low, at present the government considers them to be of little consequence to your health. However, a number of studies now contradict this and suggest that even trace amounts of pharmaceuticals in drinking water can affect human cell growth. This illustration highlights the problem:

Drugs in Drinking Water, Pharmaceuticals in Water


This is a serious national issue...not to be taken lighly. When your water source is a river and there are cities upstream then I recommend you use reverse osmosis at the kitchen sink to remove these contaminants. One of the most prominent drugs in water is estrogen, which can have profound effects.


Cities with pharmaceuticals in water


Read this article. If this is true in Puget Sound then it is likely true in cities across America whose water source is river water where there are cities upstream. This study finds 81 unregulated contaminants entering Puget Sound from waster water treatment plants:


You can check out these studies showing the impact of this mix of pharmaceuticals on cell function for yourself:

How Meds In Water Can Impact Human Cells:


Drugs In Our Drinking Water:


Scientists Trace Cancer Causing Chemical:


Scientits Say 60% of Male Fish Bear Eggs:

Another serious issue on rivers in agricultural areas is the presence of numerous unregulated pesticides. Because these chemicals are not regulated, just like the pharmaceuticals, they don't show up in your local water report. But studies have shown them to be present in every river in the midwest so you can assume they are present...because they are.

Pesticides block male hormones:


Unregulated Pesticides found in midwestern rivers:


James P McMahon at Zion National Park

My name is Jim McMahon and I bring healthy water to one family at a time.

Call and you'll reach me directly


9 AM to 6 PM Mountain Time


ecologist James P McMahon


James P McMahon

Bringing You Healthy Water

Water softening is something I only recommend when it seems an absolute necessity … I do offer water softeners and scale reducing equipment. Unlike traditional water softener sales people I do not believe that softening is critical at low levels of hardness. In fact, I like hard water. Hardness consists of calcium and magnesium and generally results in an off white colored build up on fixtures or spotting on glass.

Traditionally water with a hardness of 5 grains would lead to a recommendation of softening. My threshold is 15 grains. At that level or higher I don’t think you have any choice but to manage water hardness because it will be damaging. My water is 12 grains hard and I do not soften. I prefer it this way.

Water softeners use salt, either sodium or potassium chloride, to cleanse a resin bead media. The resin attracts calcium ions and releases sodium into your water. A backwash then cleanses the resin replacing the calcium with more sodium and washing the calcium and the chloride down the drain. Water softeners will also remove magnesium, iron, and manganese at very low levels. I do not use water softeners to treat iron.

My water softener is constructed to match my Urban Defender whole house water filter:


Urban Defender on the left and water softener with salt bin on the right in photo above. Prices for the water softener start at $1430.


Many people buy the wrong water softener and are then disappointed with the results. You have to match the capacity of the softener to the hardness of your water. You may request my short paper on this topic here: How to Buy the Right Water Softener.

There is both consumer and environmental pressure to move away from water softeners to systems which don’t use salt. I’ve tried a number of these and found that most don’t work. But a review of a study by ASU that compared various systems led me to start selling the Scalenet system by Watts Water. The technology is proprietary so I don’t at this time know exactly how it works but the basic idea is this: the calcium is not removed but somehow modified so that it is less likely to stick on fixtures and more readily removed by cleaning. The system is very low maintenance with media being replaced every three years. Of course this depends on water use and is only an estimate.


Urban Defender and Scalenet:

Urban Defender on the left with Scalenet on the right in photo above

Prices for the scalenet start at $1200 plus shipping for a single family 4 person home.

As always, any sales with me are by phone so you can call to place an order.

 When you call, you'll reach me directly.

Together we will solve the water problems in your home.

866-691-4214 (toll-free)


Monday - Friday
Try between 9 AM - 6 PM Mountain Time

I take weekends off

My Pledge to You:

"Honesty and Integrity in providing what you need, along with good old-fashioned service and values."

Bud Booster Water Filter


Bud Booster water filters for home and grower

The Bud Booster water filter will enhance the growth of flowering plants by eliminating chloramine and fluoride*.


I’m excited to bring you a brand new filter designed specifically for the horticulture industry.

Chloramine is a combination of chlorine and ammonia used by an increasing number of cities to disinfect drinking water. It is thought to interfere with plant growth and may cause necrosis in leaves Like chlorine, it kills bacteria and will therefore kill microorganisms in soil. Both chlorine and chloramine also produce carcinogenic byproducts that may also affect plant growth and/or be absorbed within the plant.

Fluoride is known to inhibit phosphorous uptake in plants at levels typical in public water supplies. So by reducing or eliminating fluoride you can increase the size of your flowers. There is extensive research on this issue within the horticulture industry.

Many flower production facilities and greenhouses use reverse osmosis systems to remove both chloramine and fluoride. Unlike reverse osmosis the Bud Booster has no waste water. It filters all of the water as it passes from source to plants.

The first Bud Booster was put into production in June (2014) and the result was a 33% increase in flower weight compared to one of the most popular chloramine filters.

The Bud Booster is intended for use where the water source is surface water and the total dissolved solids content is below 300 ppm.


Click here to request specifications for Bud Booster - please specify which system you are inquiring about.


Bud Booster for Home Grower $350.

This system is intended for the horticulturist to use at home in a small greenhouse. It uses 1/4" tubing and flows are a rate of 1 gpm:

Bud Booster water filter for home


Bud Booster for Retail Grower: $450

This system is intended for a small commercial horticulturist or farmer with a large greenhouse. It uses 3/8" tubing and provides filtered water at a rate of 3 – 5 gpm:

Bud Booster water filter for grower


Commercial Bud Booster System - I can provide custom systems for warehouse growers to provide pretty much any desired flow rate. The system pictures provides up to 10 gpm of filtered water.
This photo illustrates both fluoride and chloramine filter systems. Call to discuss.


Commercial Bud Booster System, for chloramine and flouride removal


As with all of my water purification systems it is best to first locate your local water report and then call me to determine which system will suit your needs. Using this approach we can be sure we're providing you with the highest level of appropriately filtered water.

* Fluoride removal can be dependent on local water conditions including the presence of bicarbonates. Flow rate is another critical factor.


Purchase the most effective home water filtration system by first learning which contaminants are in your water

If you're serious about having healthy water in your home...

You need help determining which Home Water Filtration System removes the contaminants in YOUR water

Water - you drink and bathe in it every day. Your health depends on it. And yet, until now, you've taken it for granted, assumed it was good, or relied on those who told you it was safe. Unfortunately, it's not...

My FREE Offer:

Call me and we’ll review your water report together  


Here you are, searching the internet to learn what you can about home water filtration systems and finding out that it's very confusing. Every site claims to have the best home water purification system or kitchen water filter and you don't know how to tell fact from fiction. There's this technology and that technology and high prices and low prices and you can't tell one from the other. You have no way of knowing which home water filtration system you need. Perhaps you've called a local company and don't know what to make of that experience.


Sweetwater LLC provides custom home water filtration systems for health conscious consumers

An ecologist with more than 30 years experience working in environmental science, Sweetwater founder James P. McMahon specializes in water quality and designing systems for the discerning health conscious consumer. Based on the premise that water filtration systems must vary according to where a person lives as well as the contaminants present in the water, Sweetwater is committed to creating solutions tailored to YOUR water. We start by identifying the contaminants in your water specifically (not all water sources are the same) and then I advise  you which of my systems will remove that group of contaminants.

Making right decisions in selecting a water filtration system for your home from a science-based skill set is the Sweetwater advantage.


"I decided to purchase the Urban Defender for whole-house filtering and a reverse osmosis unit for drinking water (I live in Los Angeles).

It is hard to explain the sense of satisfaction and safety I feel knowing that the water I bathe in and drink is healthy."

Senta Edesa, Los Angeles

You Need Someone You Can Trust

I am James P McMahon, an ecologist with over 30 years experience dealing with environmental issues, including a great deal of work on water quality, river restoration, and home water purification systems. It is my work with rivers that led me to understand the extent to which we've polluted our drinking water and to help people like you achieve healthy water. Even if you studied your water issues extensively, you are still likely to buy the wrong water filtration system for your home. To make the right choice you have to choose the person or company you trust. I help you make the best choice for your family.


I separate fact from fiction and my work is rooted in science.


Whether you’re looking for a whole house water filter, a water purifier, a filter for city or well water, or you’re just trying to figure out what’s wrong with your water, I can help..

I work with customers throughout the United States. My approach is to identify the contaminants in your water and then prescribe the proper water filtration system. Sometimes a whole house water filter is needed and other times a simple kitchen water filter will suffice. Often you need both because each may remove a different set of contaminants. Either way, I will work to make sure we meet your needs within your budget. My focus is on providing healthy water for your family. Learn more about my services below. If you are outside of the United States I cannot help you due to the high cost of shipping.



Here are 3 ways I can help you...

If you are on public water: first find and email me your local water report and then call me and we’ll review your water report and determine which of the systems I sell will best meet your Kitchen Defender® water filter is the best kitchen water filter you can buy and my whole house Urban Defender® is more effective than popular systems that cost four times as much. I have developed these using the most current and effective technologies. They are both custom built to my specification - and can even be modified just for you! And both are far superior to the cheap upflow systems offered at lowered prices. Don't be fooled! Request my specifications and study the differences.

If you have a private well: our process starts when you call me to purchase a well water test. Once we determine what's in your water we can discuss which well water filtration system or well water filter will resolve those issues. If you've already had your well water tested, call me with that test in hand to learn what well water purification system or well water filter you need.

You can purchase my Ultimate Guide and determine what type of filtration you need all on your own...

Update: August 2021/Now with streamlined recommendations in select locations: 

Learn exactly what to order: San Francisco, Los Angeles and Southern California, Salt Lake City, Seattle and Bellevue, Chicago, Denver and Durango, Dallas and Houston, Birmingham and Tuscaloosa, and St. George, UT


Water Filtration Systems

I work with numerous manufacturers and carry a number of high quality products that address most water quality issues for city or well water. I have whole house systems, drinking water filters and reverse osmosis purifiers. My Urban Defender™ whole house water filtration system and Kitchen Defender™ water filter are incredible products at a great price and they are tailored to your water source. I provide the highest quality reverse osmosis system . that can be modified if necessary. This ability to modify components enables me to provide you with the best water purification system for your water while meeting your personal goals.


Click on the links to the right to learn more about the complete line of products and services I provide.


You won't find a shopping cart for equipment on this site. I deal with every customer individually ... by phone. That way I make certain that you buy exactly what you need. You can either call me, or request specifications and pricing by email from the links on the water and air purification pages. I'll gladly email you greater detail on the products that interest you. I will only make a recommendation when we are speaking on the phone while reviewing your local water report together.


The Ultimate Guide

The Ultimate Guide to Selecting the Perfect Water Treatment System helps you make the right decision. You may purchase my Ultimate Guide for just $14.95. If you follow my Five Steps to Pure Water as outlined in the Ultimate Guide, you'll know that you're buying the home water purification system that solves your problems and achieves your goals - resulting in the perfect system for you! Even people overseas are welcome to purchase my guide.

I Guarantee It!

At $14.95 my Ultimate Guide is a bargain and the best place to start.

Purchase The Ultimate Guide to Selecting the Perfect Water Treatment System

It's no longer reasonable to assume that you can rely on government agencies to provide you with healthy water at the tap. If you want healthy water for your family, you must take responsibility for treating it yourself. The mistake most people make is to buy a water filter without first learning what's in their water. Before you go out and buy anything you need to know what you're trying to achieve. I have seen local equipment sales people confuse consumers with water tests that confound even me. By knowing what's in your water and setting your goals you can avoid the confusion.

Read the Ultimate Guide. My Ultimate Guide to Selecting the Perfect Water Treatment System walks you through an easy, five step process, Five Steps to Healthy Water, during which you learn the candid truth about your water and what you can do to make the best decisions to protect your family.


Before you purchase owe it to yourself to make sure you're making the right decision.

“Learn before you act and then you can act effectively to protect your health.”


My Commitment to You

- I will always come from a place of integrity

- I will never sell you anything you don't need

- I'll always suggest a lower priced option if it will accomplish your goals.

And I am committed to a life of principle in which my role is to make the world a better, healthier place to live one person and one family at a time...





What's in YOUR Water?

ecologist James P McMahon

James P. McMahon, ecologist

My name is Jim McMahon and I help people achieve healthy water in their homes.

When you call, you'll reach me directly.


Together, we will solve the water issues in your home.


I look forward to hearing from you!

866-691-4214 (toll-free)


OPEN 11am EST/8am PST

970-259-2171 (direct)


"Do what you do so well - and so uniquely - that people can't resist telling others about you."     - Walt Disney

Whole House Water Purification Systems and Water Purifier

for city water

designed by ecologist James P McMahon

Water Treatment Systems designed by ecologist James P McMahon

When Choosing a Water Purification System or Water Purifier for Public Water, you must consider the following:

If you are supplied by public water your water contains chemicals that are used to kill various microorganisms. Chlorine is a poison and when it interacts with organic material in water a number of carcinogenic byproducts produced. These are known as Trihalomethanes and Haloacetic acids. Some cities are switching to chloramine in an attempt to reduce these carcinogenic byproducts. Chloramine, a combination of chlorine and ammonia, is worse than chlorine, in my opinion. It also produces carcinogenic byproducts however these are not yet regulated. If you doubt me, read the articles in my water resource library. Your water may also contain regulated contaminants and a variety of unregulated contaminants that are not removed by public water systems. Hence....your water is contaminated. This is not meant as a criticism of public service agencies. They do their best for you. My point is that you do not receive and cannot expect truly healthy water from public systems. 

If you have well water, skip this page and go to

Well Water Treatment Systems


In order to know which water purification system or under sink water purifier to buy you have to start by looking at your local water quality reportYou want to buy the whole house water purification system or kitchen water purifier (or both) that removes the contaminants in your water. Most people make a huge mistake by not doing this. Just buying a filter does not protect you! It has to be the right one for your situation.


Are you ready to solve the water issues in your home?


Here's what to do:


Obtain a copy of your city's annual water quality report, sometimes called a Consumer Confidence Report - here's how to find it: Water Quality Report - first email me a copy and then call me and we'll discuss which whole house water treatment system or under sink water filter will achieve healthy water for your family. That is my focus: healthy water for you.


Pick up the phone and call me during the hours of

9 AM - 5 PM Mountain Time, Mon - Fri

866-691-4214 (toll-free)

and we'll find your water quality report together!



First determine which contaminants are in your water and which type of filtration technology will remove them. I do this by looking at the water report supplied by your local city or water company. You can do it all on your own by buying my Ultimate Guide or signing up for my free Five Steps to Healthy Water email series. Or you can call me.


Together we will look at your water report and determine which whole house water purification system or drinking water purifier will best meet your needs.  I cannot make a recommendation without speaking with you.


These are some of my products which you will find in more detail on their own product pages as listed here:


Urban Defender® Whole House Water Filter:Urban Defender whole house water filter


My Urban Defender whole house water filtration system is as effective as systems sold by the major brands that cost four times as much.

To learn more about the Urban Defender please visit my whole house water filtration system page.


Or, you can request pricing and specifications here: Send me pricing and specifications for the Urban Defender.


You can combine the Urban Defender with other home water filtration options, such as specific contaminant removal, such as fluoride or arsenic, and Ultra Violet light, for more complete protection from the contaminants in your water supply. There is no better whole house water filtration system for municipal water.


Don't be fooled by the low cost systems that don't backwash. They're junk. You get what you pay for.


Ask me why a downflow system with backwash is better than the upflow carbon filters which cost less.




“My Urban Defender whole house water filter has changed my life. I love it!”

Aileen Gee, Falmouth, MA


"...not only is our water clean, fresh and smooth tasting but it even feels better. Beyond the physical attributes supporting the quality of our new water, there exists a real sense of confidence and peace of mind in knowing that the water we consume and absorb in a variety of ways each and every day is pure and healthful. Your recommendation of The Urban Defender whole house water treatment system along with the polishing affect of the triple water filtration Kitchen Defender under sink water filter really seems to fit the bill."

John Ciulla; Airmont, NY


"The best tasting water I've ever had. It's way better than any bottled water.

Jim has provided impeccable service. His genuine interest in the quality and taste of our water is reassuring. Additionally, Jim has continued to follow through to check on our service needs and has responded quickly to all of our requests. My wife and I give him our very highest recommendation."

Dan Walden; Corona, CA


Satisfied Customers speak out here: Sweetwater Product Reviews



"We bought a whole house water purification system from Jim and now our water is perfect!"

Beckie Moses, Lilburn, GA


Kitchen Defender® Water Filter:

Kitchen Defender under sink water filter

There is no better drinking water filter than my Kitchen Defender - effective yet affordable. Learn more about it on my kitchen water filter page.

Or, to request specific product information and pricing request the information here: Kitchen Defender Water Filter

Independent testing showed total removal of chloramine, chlorine byproducts, and fluoride. Other tests have shown only a reduction of fluoride, which depends entirely on local water chemistry.

The Kitchen Defender water filter is also available with UV light and in a commercial version for use in restaurants, hotels, and businesses.

The Kitchen Defender produces high quality drinking water that can be reminiscent of natural spring water.



"Dear James, Thank you for your prompt attention and service in my recent purchase of a water filter. I am in the customer service profession, so it is especially nice to work with someone who understands what it means to ‘exceed expectations’. You certainly did that for me. I appreciate the knowledge and help you provided me in my unique water situation and could not be more thrilled with the performance of the unit you had custom built for me. I am looking forward to sending all my friends and clients your way as I truly believe pure drinking water is the #1 foundation for good health. Warmest regards,"

Meredith Martin; San Francisco, CA


"I just had my Kitchen Defender under sink water filter installed. It's FANTASTIC! After flushing the system for a good 20+ minutes I am excited to say I LOVE THIS WATER. It is hard to believe that the nasty county water was transformable into such great tasting water. I did a lot of research on choosing the proper water system for my home and really appreciate your approach. It makes sense to buy a system that targets the specific problems of my water rather than a generic system. Thank you for all of your help and fantastic customer service."

Pam Velez, Tampa, FL


Just a note to let you know we got the new carbon filter for our Kitchen Defender. We already had the calcite replacement and I installed them both today with no problems. You had asked about the Ph of the water. I tested it before the replacement and it measured at 6.8. After it tested at 7.6 which is the highest the test kit I have can measure. The water now tastes great again. Thanks.

Duane Orlaske, Windsor, CT


I've been meaning to write and let you know that the water tastes great! The difference in the water is just amazing! We are so happy with the Kitchen Defender under sink water filter, and showers are awesome without feeling like you're in an indoor swimming pool (with the chlorine smell, I mean). Thanks again for all your help! Best wishes,

Monica Ely, Lafayette, CO


Satisfied Customers speak out here: Sweetwater Product Reviews


Sweetwater's Custom Reverse Osmosis System and Water Purifier:

custom reverse osmosis with alkaline pHI sell a 5 stage custom Reverse Osmosis water purifier that I recommend for removing nitrates, removal of some metals including chromium 6, fluoride, arsenic, radioactive metals, high dissolved solids (aka TDS) and unregulated pharmaceuticals in drinking water.

You may learn more about it on my reverse osmosis system and water purifier page.

Many people object to the use of reverse osmosis because it removes the natural minerals in water along with the contaminants. I invite you to read my article: 'Minerals In Water' to learn why you may need a reverse osmosis system. Really, you have to remove these contaminants and the minerals can be replaced through diet.

Click here to request my Reverse Osmosis System and Water Purifier Specifications and pricing.



"Before getting a whole house water treatment system from Jim, I used a pitcher water filter and would occasionally drink tap water. With my new RO water purifier from Sweetwater, I fill bottles to carry with me wherever I go and LOVE the water! I’m HOOKED on pure clean water and my body can feel the difference!"

Stephen Pierce, Monmouth, OR


"Jim -we did the “water test” and it was a no-contest winner for the RO water! The Urban Defender whole house water filter does a good job but the RO water purifier takes it up another notch to truly, bottled water quality, or should I say better than bottled water?"

Craig Umphrey, Terre Haute, IN


In some cities a whole house water treatment system is all you need. In others, the contaminants in your water require that you have both a whole house water filter and a under sink water filter or water purifier. If you must prioritize for budget reasons, then I suggest you start with the kitchen under sink filter.  Learn more by emailing me for this short discussion:

Do you need a Kitchen Water Purifier or Whole House Water Filter or both?


Equipment for Specific Issues

For people who have a specific home water filtration problem they wish to solve, I provide a full line of high quality water treatment systems to remove iron, manganese, hydrogen sulfide odors, neutralize acid water by raising pH, Ultra Violet light for bacterial contamination, arsenic, mercury, nitrate, fluoride or other specific contaminant removal.

You can learn more about many of these water treatment systems on my well water treatment page. I also have a wide variety of water filtration, sediment filters and water softeners.

If you're thinking of buying a water softener, email me for a tip on how to buy the right softener for your needs: How to buy the right water softener or call me and I'll sell you the right one.

The systems I sell uses natural methods to remove specific contaminants. Call me for product details, specifications, and cost. In order to help you with these products we must be able to discuss the details of your water quality. If you have a well, see my well water treatment page. If you have a special water filtration problem, call me to discuss your needs. I also have extensive technical support backing me up so we can be sure to provide you with the whole hose water treatment system that will meet your needs.


'Living' Water

For those clients who are interested in a holistic approach and the concept of revitalized or restructured water, I carry the Water Revitalizer. I use this product in my home. The concept behind its design is based on the theories of Viktor Schauberger, an Austrian whose work was published in 1932 and 1933. His theories maintain that water holds an energy in its natural state. If you've ever sat and watched the water in a stream, perhaps you'll agree...the water swirls and turns, always shifting in a circular motion. Schauberger suggests that this natural flow form is eliminated by putting water in pipes and treatment with chemicals such as chlorine. Water with this natural energy is thought by some to be more healthy.


Reading Your Water Report

OK, so I've told you to obtain your water report and perhaps you've done so and you have no idea what it means. You're welcome to call for my free 20 minute phone consultation to figure out what to do. Or, if you plan to purchase equipment from someone else but want my opinion of what to buy, you can pay my consultation fee of $150 for a city water report. (Purchase it here: Water Consultation) and we'll make sure you buy the right system. And for those who want a third option you can listen to a recorded call of me interpreting the Durham, NC water report for a customer here: Reading Your Water Report

NOTE: You are most welcome to email a copy of your water report to me. Be sure to follow up with a phone call so that we may review it together. I will gladly go over it and tell you which whole house water treatment system or under sink water filter I recommend specifically and what they cost. I do not analyze water reports by email as I need additional information from you in order to make a recommendation.

You can email your report to me at


Installation and Service

I work with clients across the country. I represent a variety of manufacturers and assemble custom water treatment systems when appropriate. We'll look at your water report and determine what you need. I won't sell you the wrong product. A licensed plumber can install the equipment I sell. I recommend that you work consistently with one plumber and use that person for all your system maintenance. If there is ever a problem with any of the home water treatment system that I sell you, then I'll work with that plumber and you to resolve it, taking advantage of the manufacturer warranties. This is precisely the same approach that you would use to deal with a water heater or any other fixture in your home.

I provide phone support during installation. I will make myself available to assist you and your plumber and I am most certainly interested and available to aid you should any equipment problems develop in the future. The equipment I sell is intentionally straightforward and not inclined toward operational failure.

Perhaps the number one reason people choose to do business with me is because of my approach. I sell high quality effective water treatment systems to people who want healthy water for their family. Sometimes people still feel that dealing with someone locally can provide them with better product support. It has been my experience that your local provider will often sell you the wrong product for your needs and service will be by someone who knows nothing about the home water filtration system you bought. To think that a local provider is a better choice is truly an illusion. It might have been true at some time in the past, but not anymore. If you find a local person who can provide an equal product and service, use him.


“I am 100% satisfied with your service. A local person would not have done as much. I have to admit that I was concerned, ordering from a person online, giving you my credit card, that the product would show up at all. When it did I could see that the construction of the product is good. The aluminum housing is strong and durable, the UV cylinder is stainless steel, the plastic is schedule 80…this unit will last for a long time. I’m pleased all the way around”

Joe Provenzano, Chalmette, LA



Call me and we'll review your water report and determine what you need. I don't charge for this.

I do charge if you want to call up and use me to provide a second opinion (like going to a second doctor before surgery). I provide a one time consultation by phone for $150. You may find this extremely useful when you are reviewing equipment proposals from local companies. You may ask me questions about your water and if I can help you or direct you to an answer I will.

If you then purchase your whole house water treatment system from me I will deduct this fee from your purchase price. You may purchase a consultation here:

Water Consultation

Purchase the consultation and then call or email me to set up an appointment.

I am also available to solve problems or design water treatment systems for you on a consulting basis. This might be appropriate in the case of problematic water supplies or commercial applications. My fee is $150 per hour with a four hour minimum. This is more typical with private well water or unique commercial appliactions. Call if you'd like to discuss this.


"Jim shows a remarkable interest in improving our water - anybody's water.

He researched my water filtration problem through his own and outside resources and helped me determine what was wrong with my water and what was needed to improve the quality.

Thanks for your help, Jim "

Mary Leathers; Pine Grove, CA

To Purchase:

All sales are by phone. I maintain personal contact with every customer. That way I can be certain that you are ordering the correct product. If you want to buy something online, you've come to the wrong place.

The water treatment systems I sell provide the most thorough level of contaminant removal available, using proven technologies. Whatever your situation: appropriately filtered, clean, healthy water is available to you for just pennies a day. You may obtain complete information on pricing and specifications for each of the systems above by emailing me using the appropriate link above.


Recommendations by Location:

Update: August 2021/Now with streamlined recommendations in select locations: 

Learn exactly what to order: San FranciscoLos Angeles and Southern CaliforniaSalt Lake CitySeattle and BellevueChicagoDenver and DurangoDallas and HoustonBirmingham and Tuscaloosa, and St. George, UT



Still confused about how to start. Email me and ask: Question between 9 AM to 6 PM Mountain time, Monday thru Friday: 866-691-4214.


Email Lists

Five Steps to Healthy Water - my free email series that will teach you how to achieve healthy water in your home. These are the same steps you learn when you purchase my Ultimate Guide. Sign up here: Five Steps to Healthy Water!

Or you may also wish to join my Water for Life email list. I send occasional emails about water quality issues, breaking news stories, healthy water, or product updates to individuals who join this list. I'll also let you know when I'm out of town for extended periods so you can buy filters before I leave or after I return.



    I hate spam too and will never share, sell, or give away your email address.


    My Ultimate Guide

    I wrote The Ultimate Guide to Selecting the Perfect Water Treatment System to aid people in identifying the contaminants in their water and the treatments to remove them.

    The guide sells for $14.95 and you may purchase it here:

    Purchase my Ultimate Guide


    I have a blog where I answer questions posed by clients here:



    Ask me a question:  I have a question for you


    “Don’t be the best in the world at what you do; be the only one in the world who does what you do.”

    ~ Jerry Garcia, The Grateful Dead


    What's in YOUR Water?


    ecologist James P McMahon
    James P. McMahon

    My name is Jim McMahon and I help people achieve healthy water in their homes.

    Let me help you solve the water filtration issues in your home.

    "I appreciate your knowledge and passion for what you do and believe in. You analyzed my problem and found a solution. You have gone above and beyond what most companies today provide in customer service. And, all with a smile and can do attitude. You're the greatest!..."

    Francine Hughes; Kayenta, UT



    When you call, you'll reach me directly.

    Together we will solve the water problems in your home.

    866-691-4214 (toll-free)


    Monday - Friday
    Try between 9 AM - 6 PM Mountain Time

    I take weekends off


    My Pledge to You:

    "Honesty and Integrity in providing what you need, along with good old-fashioned service and values."


    Helpful Links:

    Natural Cleaning Tips - FREE tips for healthy living in your home

    Sweetwater's Water Resource Library a GREAT place to find recent headlines, papers, press releases, and tools for healthy living

    Healthy Links- People or products I like or use myself

    My biography - Learn more about me

    The Parable of the Mexican Fisherman - A reminder about what's important


    healthy water comes from uncontaminated rivers, Santa Clara River in Brookside UT

    Santa Clara River - in my front yard



    I don't take American Express