What Causes Backflow in a Plumbing System?

Backflow usually happens when water pressure drops unexpectedly, causing water to reverse direction. This can pull contaminated water from irrigation lines, appliances, or other sources back into your home’s clean water. It’s often triggered by things like a burst main or firefighting efforts nearby.

Do I Really Need a Backflow Prevention Device?

If your home has an irrigation system, fire sprinkler, or other cross-connection points, a backflow prevention device is not just smart — it’s often required by code. These devices stop dirty water from mixing with your drinking water supply.

How Long Does Backflow Testing Take?

Backflow testing typically takes less than an hour for most residential systems. Our licensed plumbers handle the inspection, document the results, and submit any required paperwork to the local water authority.

What Happens if My Backflow Device Fails?

If a backflow preventer fails, it needs to be repaired or replaced immediately to avoid water contamination. Olympic Plumbing Technology offers fast service and can make sure your home stays protected and up to code.

Preventative Backflow Services in the South Sound Area

Seeing These Backflow Warning Signs? Call Olympic Plumbing Technology Before It Gets Worse

First Of All: What Is Backflow?

Backflow can introduce contaminants into your home’s water supply, creating potential health risks and plumbing damage. If you notice any of the signs below, call us to schedule a service and let Olympic Plumbing Technology restore your water safety and peace of mind.

Discolored Water: Brown, yellow, or cloudy water can mean contaminants are flowing back into your clean water lines.
Bad Tastes or Odors: A metallic or sewage-like smell or taste is a serious indicator of cross-contamination.
Unusual Water Pressure Drops: Sudden changes in water pressure may suggest backflow issues or valve failure.
Visible Leaks or Water Around Valves: Pooled water near your backflow prevention device could signal a malfunction.

Backflow Prevention Services in Thurston, Pierce, Mason & Lewis Counties

Backflow happens when dirty water flows into your clean water supply. Olympic Plumbing Technology has the fix. Our team makes it easy to keep your water clean, safe, and flowing in the right direction.

Backflow Device Installation

We install pressure vacuum breakers, double-check valves, and reduced pressure zone assemblies to prevent contaminated water from reversing into your clean supply.

Annual Backflow Testing

Required by many municipalities, this yearly inspection ensures your prevention device is working properly and is fully compliant with local water safety regulations.

Inspection for Code Compliance

Our licensed plumbers evaluate your system’s layout and devices to ensure everything meets state and municipal plumbing codes for backflow prevention.

System Upgrades & Replacements

For outdated or malfunctioning systems, we provide expert recommendations and install modern solutions that meet today’s safety and efficiency standards.

Are You Ready to Get Started?

Let’s get your plumbing project underway — contact us today to schedule fast, reliable service.

Book Now

360-352-5164

Why Choose Olympic Plumbing Technology for Backflow Services?

You don’t want to gamble when it comes to water safety. That’s why homeowners across the South Sound trust Olympic Plumbing Technology for certified, code-compliant backflow solutions that get it done right the first time.

Certified Backflow Technicians: Our plumbers are trained and certified in backflow prevention and testing to ensure the highest safety standards.
Prompt Service Scheduling: We understand the importance of water quality and make it easy to stay compliant by offering fast, flexible scheduling.
Annual Backflow Testing: At this time, we do not provide backflow testing, but we’d be happy to provide a referral of a backflow testing company in your area.

When it comes to keeping contaminants out of your drinking water, we deliver expertise you can count on. Let us help protect your home and your family with dependable service every time.

$100 Off

Any Service or Repair

Book Now

Offer cannot be combined with any other promotions, discounts, or special offers. Terms and conditions may apply.
Expires: Sep 30, 2026

Services

"*" indicates required fields

Step 1 of 3 - Contact Information

URL

This field is for validation purposes and should be left unchanged.

Name*

Email Address*

Phone Number*

FAQS

Frequently Asked Questions

Testimonials

What Our Customers Say About Us

Nick was fantastic! Very personal and professional. Couldn’t have asked for more!

Cris Perez

2 days ago

Jake was awesome!!!!! Super friendly. He took the time to explain everything going on in my house and the best approach. Top notch dude. Thanks Olympic Plumbing.

Sean Carrell

3 days ago

Good service. Explained everything clearly.

Denis O'Brien

7 days ago

Eric was prompt, courteous, friendly, and a very clear communicator. He worked quickly and fixed our problems without pushing us into extra services. Highly recommended.

Morgan Wear

7 days ago

Alec R. Did a wonderful job. We are quite happy with the service.

Paul Fouhy

7 days ago

My shower had been broken for months and Scott came and fixed it in less than an hour! Was able to come by early and freed up my day! Friendly, fair pricing, and quick service, can’t ask for more than that!!

Vatoria Keyes

7 days ago

We had the exterior outdate and failed faucets replaced by Keenon. He was professional and thorough; and kept us in the loop during his visit.

We'd surely call again for our next plumbing project. The office staff was extremely engaged and kept us informed and ensured our schedule was kept. The ability to request an appt online was extremely user friendly and allowed us to state our concerns and provide pictures.

Thank you!

Crystal Faur

1 week ago

Excellent service and communication. I called in the morning about a leak and had their technician Jake here within less than 2 hours. He explained what needed to be done and I also added an additional task. Everything was completed efficiently and well done. Will definitely use this company again.

Patti Bell

1 week ago

Ron and Alan showed up on time and stayed until the job was complete. They even had a 3rd member who ran for parts during our several hours repair and replacement job.
We had heard good things about Olympic Plumbing, but this was our first time using them. We couldn't be happier and they will definitely get our future business.

Helen Wheels

1 week ago

Mark answered the phone courteously and patiently and Jake was able to come out quickly when our sink was clogged and backing up. They were friendly, professional, and took care of the problem without any fuss. They were upfront about the cost and options. We really appreciated the quick response and would definitely recommend Olympic.

Jennifer Joung

1 week ago

Very patient, kind technician, Stephen. Answered my questions clearly.

LilyAnne Moses

1 week ago

Erick was awesome. He got here super quick and helped me understand my options.

Sarah Sanchez

1 week ago

Nick was excellent and quickly identified my leak issue!

Logan Bahr

1 week ago

Scott did a great job of determining the problem was a failing water tank, then replacing it with a larger and much nicer one.

Cindy Levy

1 week ago

Keen on did good work on short notice and worked until the job was done. Diagnosing the issue and fixing what he could on the spot.

Sam Stipic

2 weeks ago

Saved the day! Thanks Steven for getting all lines cleared for canning season! He was prompt, polite, and finished the job as promised.

Michelle Standridge

2 weeks ago

Erick was friendly, quick and efficient. Explained what was involved in the repair. Provided options and didn’t mind answering my questions. Felt pricing was reasonable. Was pleased with the finished repair. First time using Olympic Plumbing. Would repeat and recommend them.