Home Water Treatment Services Photo Gallery References Free Water Analysis Resources About Us Contact


Here are some words of appreciation from just a few of our customers.

Super Happy and Telling Their Friends

"Nice work! Super happy with you guys! I have some buddies building, too. I will be sending them your way!"

~ Spencer W.
Ravensdale, WA

Thankful for their New Water Filtration System

"Thanks for testing the water, and telling us we can use the water now. We are so thankful for the filtration system that you did for us!"

~ Shannon L.
Auburn, WA

Now Enjoying Great Tasting Water

"Thanks for the install - our water tastes great!"

~ Aditya D.
Sammamish, WA

Water Tastes Sweet and Fresh with Their New Arsenic Removal System

"I am very impressed with the test results! And the water tastes sweet and fresh. Thanks again!"

~ Paul L.
Ravensdale, WA

Northwest Water Treatment Lives Up to Their Great Reputation

"In doing my research for this type of service, I was continually referred back to this agency by others because of their expertise in water filtration. The owners came to my home twice and did two different water samples and then Glenn, the owner, and his son Derrick were nice enough to sit down and explain the need for each piece of the system they recommended. The install went smooth and without any hassle. They have been extremely responsive to my questions and concerns. Derrick also explained what I needed to do to maintain the system. Professional, courteous and conscientious is how I'd describe Northwest Water Treatment Inc. I would surely recommend them to any of my friends and family."

~ Alvin Y.
Spanaway, WA

Delicious Water in Just 24 Hours

"What a difference in just 24hrs. So happy with the system. Derrick did a great and explained everything really well. Thanks again!"

~ Kim W.
Eatonville, Washington

Enjoys Delicious Water Right from the Tap

"… thank you for our new water system upgrade. It is so nice to be able to drink the water from the tap. Charlie said your son was very efficient with the installation and so pleasant to have around. Thanks so much."

~ Anne B.
Vashon, Washington

Wish We Had You As Our Well Guy Years Ago

"Thank you for the check up on our polymer pump, etc. Appreciate your swift response. Hope some of my neighbors, who I have given your name and information, give you a call. Wish we had you as our well guy when we first moved in, as you would have corrected early on things we have had to live with for many years. Thanks."

~ Greg C.
North Bend, Washington

We Now Have Outstanding Water!

"Hi Glenn, your son did a great job out here. I just wanted to say thanks. After running the water for just a couple minutes to get the non-treated water out, we now have outstanding tasting water! What a difference. Thank you very much."

~ The Lowell family
Maple Valley, Washington

Good News! Our Water is Now Wonderful

"Good news! Thank you again. The water is now wonderful."

~ Marshall G.
Black Diamond, Washington

Ecstatic with Our Water and How We Were Treated

"We are ecstatic with the water system and good honest service provided by Northwest Water Treatment. We were extremely dissatisfied with the previous companies contacted who would not fix our old system and touted stock systems they carried. One company didn't even test the water before suggesting a system. We called Northwest Water on a Monday and the following Friday had a new system which is customized to remove iron and sulfur and provide good quality water. Quite a bit more sophisticated than the water softening system we had had for the past 20 years. We might also add that the owner and his son were on site the day of the installation from morning until 7 pm perfecting everything including fixing a leak under the house and replacing floorboards in the pumphouse all without charge. They very much stick with the estimate given prior to the work being done. These folks are the most honest individuals we've come across since our water problems started several months ago. We give them a 10 star review on a scale of 1-5!"

~ Rick and Nancy
Orting, Washington

So Pleased with Your Excellent Service We're Giving Our Neighbor's Your Info

"Thank you for your prompt service call last week. Our water looks great. Also, thanks for all the information and tips so we can better maintain the system and keep the water lookin' good. I will definitely give your name and telephone number to our neighbors. We all have the same problem with rust in the water. I know they all have expensive water filtration systems they are trying to maintain or may need to replace."

~ Judy Y.
Buckley, Washington

Loves New Water Treatment System

"We love our water treatment system!"

~ Laurie M.
Lake Tapps, Washington

New Water System Works Great

"The water system is working great and we love it. Thanks."

~ Sergio G.
Snohomish, Washington

Enjoying A More Efficient, Simple, and Effective Residential Water Treatment System

"Glen at Northwest Water Treatment earned our trust when he solved some major problems with our failing treatment system. Years later he designed a complete new system, and we now enjoy a much more efficient, simple and effective system with minimal maintenance and perfect water. We couldn't be happier with Glen's installation and service."

~ M.C. Estate
Mercer Island, Washington

Thank You! We So Happy With Our Well Water!

"The water is great! Thank you for the quality craftsmanship and your flexibility as we paid for your services. We are so happy with our water!”

~ Jeremiah C.
Auburn, Washington

Appreciates a Job Well Done

"Derrick did a super job, we appreciate it. Thank you for the nice job."

~ George Hill
Vashon, Washington

Well Water Quality is Vastly Improved and Our System Costs Have Decreased

"Recently I replaced my 1992 "time" based water filtering system with a "volume" [metered] based "ck" system from Northwest Water Treatment, Inc. located in Kent, Washington. Glenn Karn, the owner, installed the cost competitive system in a very professional manner. My water quality has vastly improved and since the system regeneration cycle is based on volume, not time, my salt consumption has been reduced from one 40# bag of salt per week to one bag per month. Needless to say, this is also beneficial for my septic tank. I am very satisfied with the system and installation and highly recommend Glenn should you need a water filtering system. I give Glenn a 5 star rating.”

~ Joe K.
Enumclaw, Washington

Superior Systems for Aquaculture Companies

"I have been working with Glenn Karn of Northwest Water Treatment since 1994 on filtration systems for shellfish hatcheries. He has set up a number of filter systems for clients of mine at many sites around the country and has always delivered a superior system in a timely manner. His knowledge, commissioning, and support are second to none.”

~ Jim Donaldson
Olympus Aquaculture Consulting Inc.

Contact us to speak with a water quality technician if you are concerned about water quality at your home, business, or aquaculture company.

Home| Water Treatment Services| Photo Gallery| References| Free Water Analysis| Resources| About Us| Contact

Northwest Water Treatment, Inc.
12627 SE 223rd Dr, Kent, WA 98031
Phone: (253) 630-7177 or (800) 377-7401 E-mail:

© Copyright 2011 - , Northwest Water Treatment, Inc. - All rights reserved.
Website Design, Hosting and Maintenance by New Tech Web, Inc.

Service Areas
Residential: western Washington including
Auburn, Black Diamond, Bonney Lake, Buckley, Covington,
Eatonville, Enumclaw, Fall City, Federal Way, Fife, Gig Harbor, Graham, Issaquah, Kent, Lake Tapps,
Maple Valley, Olympia, Orting, Preston, Puyallup, Renton, Roy, Spanaway, Sumner, Tacoma, Wilkeson, and Yelm

Communities: Rural western Washington

Commercial and Industrial: western Washington including 
Bellevue, Everett, Olympia, Seattle, and Tacoma

Aquaculture: United States and British Columbia (BC), Canada


Pentair Walchem WATTS Clack Charger Water Treatment Water Quality