Step-by-Step Guide to Installing a Whole House Water Filtration System in Spokane Valley

August 27, 2025
By Quality Water Northwest

Clean, safe water is essential for your family’s health, yet many Spokane Valley homes struggle with hard water, chlorine taste, and potentially harmful contaminants flowing from every tap. These water quality issues affect everything from your morning coffee to your appliances’ lifespan.

A whole house water filtration system offers a comprehensive solution by treating water at its entry point, ensuring every drop that flows through your home is clean and fresh. Let’s explore how to install one of these systems yourself and transform your home’s water quality from source to tap.

Spokane Valley Water Concerns

A whole house water filtration system treats all water entering your home, removing contaminants before reaching any faucet or appliance. Spokane Valley residents often deal with hard water containing excess minerals that affect appliances and plumbing.

Municipal water supplies typically contain chlorine and treatment chemicals, while well water often has iron, sulfur, and sediment issues. These contaminants affect taste and potentially impact your family’s health over time.

We’ve helped many local families address these specific water challenges with specialty water filters that work for both city and well water sources.

Advantages of Whole House Filtration

Installing a whole house water filtration system provides immediate improvements to water taste and odor. Your morning coffee and cooking water will taste noticeably better within days.

Your appliances last longer with filtered water flowing through them. Water heaters, washing machines, and dishwashers experience less scale buildup.

  • Better health: Removes potentially harmful contaminants like lead and certain bacteria
  • Improved comfort: Softer skin and hair after showering
  • Respiratory benefits: Eliminates chlorine vapor irritation during hot showers

Tools and Supplies for Installation

Before beginning installation, gather these essential tools:

  • Pipe cutter
  • Adjustable wrenches
  • Teflon tape
  • Measuring tape
  • Level

You’ll also need the filtration system components including the filter housing, mounting bracket, filter cartridges, shut-off valves, and appropriate fittings.

Spokane Valley requires permits for significant plumbing modifications, so check with local authorities before starting. We recommend consulting the manufacturer’s specifications for your chosen system.

Five Steps to Install Your System

Proper installation ensures optimal performance and prevents costly water damage. Following these steps carefully will help you achieve professional-quality results.

1. Turn Off Water and Drain Lines

Locate your home’s main water shut-off valve and turn it clockwise to completely stop water flow. Open all faucets throughout your home to drain remaining water from the pipes.

This prevents flooding when you cut into the water line and allows for a cleaner installation process.

2. Select an Ideal Location

The ideal location for your whole house water filtration system is after the main water meter but before any branch lines. Choose a spot with at least 12 inches of clearance above the unit for easy filter changes.

The area should be protected from freezing temperatures and have enough space for comfortable maintenance access.

3. Cut Pipes and Attach Fittings

Measure twice and cut once when removing a section of your main water pipe. Use your pipe cutter to make clean, straight cuts where the filter system will be installed.

Apply teflon tape to all threaded connections, wrapping in a clockwise direction to prevent leaks.

4. Mount the Filter and Install Valves

Secure the mounting bracket to a wall stud or solid surface using appropriate screws. Install shut-off valves before and after the filter location to make future maintenance easier.

Consider adding a bypass line that allows water to flow through your home when the filter is being serviced.

5. Turn Water On and Flush System

Slowly turn your main water supply back on and check all connections for leaks. Open a cold water faucet at the highest point in your home to release trapped air.

Allow water to run through the system for 5-10 minutes to flush out any manufacturing residue or carbon fines from new filters.

Maintenance and Filter Replacement

Most whole house water filtration system components require filter replacement every 3-6 months depending on your water usage and contamination levels. Watch for decreased water pressure, which often signals it’s time for a new filter.

  • Sediment pre-filters: May need more frequent changes with high particulate levels
  • Carbon filters: Typically last 6-12 months depending on water quality
  • Specialty filters: Follow manufacturer guidelines for optimal performance

We recommend scheduling an annual professional inspection to ensure optimal system performance. Our technicians can test your water quality and check for potential issues.

Moving Forward With Cleaner Water

A properly installed whole house water filtration system provides immediate benefits you’ll notice in every aspect of daily water use. From better-tasting drinking water to softer laundry and longer-lasting appliances, the investment pays dividends.

If you’d prefer professional installation or have questions about the benefits of installing a water purification system for your specific Spokane Valley water concerns, our experienced plumbing team is ready to help. We approach every home as if it were our own, recommending only what you truly need.

Book a service appointment today and experience the difference that truly clean water makes in your home and family’s well-being.

Hear From Our Happy Customers

At Quality Water Northwest, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

"Beyond 5 star experience!!"

Quality Water Northwest is a beyond 5 star experience!! We have an extensive home water and filtration system and the service we continue to receive from them is excellent. They explain things in detail, they talk to your level of knowledge, they are patient, and they are great at what they do! On top of all that they are wonderful people to deal with, Jason and Matt in the field, and Connie in house ~ all are quality individuals and employees that represent the company very well. They are quick to respond when a need arises and are very solutions oriented in order to make the best decisions on behalf of the customer. Customer focused, water system experts!! Highly recommend!
- Nancy

"I highly recommend them."

Our lake house ran lake water throughout the house. When we decided to upgrade to a fresh water system we did our research and chose Quality Water Northwest for a filtered water system. As a business owner, I am always watching for excellent customer service and expectations met. Quality Water Northwest gets my 5 stars. Everything they installed was done right. Their staff was very responsive with questions and small adjustments once we were up and running. I waited to be sure we were happy before writing a review. We've been enjoying "Quality Water" for a year now. I work with so many companies. Few stand out as they do. These folks are on my top shelf. Very refreshing. I highly recommend them.
- Tom

"A true blessing!"

Many years of ongoing problems with my "other" unit. I called Quality and found INTEGRITY to be the main focus of this OUTSTANDING company. The owner personally arrived, provided an outstanding review of our needs, and a "no nonsense" price. The installer was amazing! and staff are excellent. I can't recommend this outstanding company highly enough!!! Needless to say the Kinetico softener is trouble free and a true blessing over our previous junkola equipment.
- Thomas

"Thank you, Quality Water Northwest!"

I have been using Quality Water Northwest for a number of years. I am impressed with their Customer Service and the detail of what they do. I was having some issues with iron and their system plus my maintenance plan has been a life saver. Thank you Quality Water and I highly recommend you to anyone :)
- Stephen

"Everyone was wonderful and so helpful."

Absolutely wonderful customer service. We discovered Coliform Bacteria in our well water, they were able to come and inspect things, then install a UV light purifier very quickly and at a very reasonable price. I really, really appreciate them! Everyone I met was wonderful and so helpful, especially Shay! Thank you Quality Water Northwest!
- Sara

"Great company!"

Great company! I purchased an iron filter and water softener. Bret met with me on site during construction, and installation went smoothly. I really appreciated how they helped me when I had questions shortly after moving in.
- Mark

"5 stars! Thank you!"

They did a lot of work and did a good job. The serviceman who came and troubleshot problems was incredibly knowledgeable and experienced and a generally great guy. If you live out in the boonies like me I can not recommend them enough.
- David

"Don't hesitate to choose Quality Water Northwest"

We had a Kinetico softener and reverse osmosis drinking water system installed in 2012. We have been extremely pleased with the system as well as the customer service provided by Quality Water Northwest. The entire system, installed with some planning into our 1960’s built home, was well worth the investment. The drinking water is delicious and the RO system has worked flawlessly. A bonus is that appliances requiring water never need to be de-scaled or have additional filtration. We also love the softened water. If we should move in the future, we will not hesitate to choose Kinetico products and Quality Water Northwest.
- Carol

"Timely, friendly, and knowledgeable!"

Tech arrived when promised. He was friendly, knowledgeable and discussed several options.
- Terry

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