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Providing Home Water Purification Systems
for the Health Conscious Water Consumer

Ecologist, James P. McMahon

water purification, home water purification systems, water filter, water purifier, well water treatment, healthy water by James P McMahon

Purchase the most effective home water purification system or water filter by first learning which contaminants are in your water


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

You Need Help


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...


Here you are, searching the internet to learn what you can about home water purification systems and finding out that it's very confusing. Every site claims to have the best home water purification system 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 purification 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 purification systems for the health conscious water consumer. An ecologist with more than 30 years experience working in environmental science, Sweetwater founder James P. McMahon specializes in water quality, river restoration, and water purification. Based on the premise that water purification systems must vary according to where a person lives as well as the contaminants present in the water, Sweetwater is committed to creating custom solutions. 

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


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 and Canada. My approach is to identify the contaminants in your water and then prescribe the proper water filters. Sometimes a whole house water filter is needed and other times a simple kitchen water filter will suffice. 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.



Here are 3 ways I can help you...

If you are on public water: 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® whole house water filtration system is more effective than popular home water purification systems that cost four times as much. I have developed these using the most current and effective technologies. My home water purification systems are custom built to my specification - and can even be modified just for you!

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 home water purification system you need all on your own...


Home Water Purification Systems

I work with numerous manufacturers and carry a number of high quality home water purification systems that address most water quality issues for city or well water treatment. I have both whole house systems and drinking water filters and water purifiers. My Urban Defender® whole house water filtration system and Kitchen Defender® water filter are incredible products at a great price and they can be modified just for you. I provide the highest quality reverse osmosis water purifier . 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 home water purification systems, air purifiers, 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!

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 drinking 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 purifier 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.

My Commitment to You

My commitment is to always come from a place of integrity. I will never sell anyone anything they 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 new: I've recently announced a new product: The Terminator whole house water filter is intended for single person households at a great price.



Regardless of your need, you can count on me.


What's in YOUR Water?

water purification systems, home water purification systems, water filter, healthy water

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

Notice: The State of California prohibits the mention of studies that document the dangers of chlorine to its residents.  California prohibits the use of the term 'pure' or 'purify' and also prohibits any claims of the reduction of contaminants by non-certified water treatment devices.

I sell both certified and non-certified water treatment systems.  Even my non-certified systems use certified technologies in the filters.  Water purification is the process of removing unwanted contaminants from water.  The end result of that process is not likely to be pure water, nor is that necessarily desirable.  What is important about water purification systems is not whether or not they are certified but what claims are made about them and whether or not those are accurate.


I don't take American Express