Annual Backflow Maintenance Program

Backflow testOur program keeps you in compliance with annual backflow testing requirements and eliminates overdue testing. This prevents costly penalties and fees, avoids multiple reminder letters from your water purveyors and additional unnecessary costs for paper, postage, etc. 

How it Works:

Spectrum Plumbing will add you to our backflow maintenance database and will automatically send you an email reminder 30 days prior to the due date of your annual backflow test. After your appointment has been scheduled, we will arrive at the agreed upon time and test your backflow prevention assembly. We will install a laminated tag on assembly with month, year and our contact information upon completion of the passing test. We will then complete the approved Test Report Form and email it to your water purveyor. You will also receive a copy of the test report and an invoice via email. You save time and effort and only need to respond to our 30-day email reminder to confirm your testing appoint with us…No more calling around last minute with your “Shut-Off-Notice” in hand. We take the hassle out of backflow testing!

Automated scheduling and processing of Backflow Test Reports

Spectrum Plumbing maintains and monitors the required dates for your backflow assembly’s annual testing. We automatically track, schedule and perform needed services to maintain your water systems. We handle all the scheduling, email notifications, appointments, submitting certification reports to water purveyors on a timely basis. Our programs and prices keep you current and save you time and money!

What is a Cross-Connection and Backflow?

A cross-connection is any connection or potential connection between a potable (drinking) water supply system and any source of non-potable or non-drinkable liquid, solid, or gas.

Backflow Hazard:

Cross Connection via Hose: What appears to be a harmless garden hose connection creates a dangerous cross connection between potable and non-potable water.


There are two types of backflow: Back-pressure and Back-siphonage.

Back-pressure is when the water supply is connected to a device that creates pressure, such as a boiler, pressure washer, etc. The pressure created can be greater than the water supply, thereby creating backflow.

Back-siphonage is when there is a loss of pressure in the water supply. This will cause the water in your facility to flow backwards back into the water supply and/or into other plumbing connections within your facility. This situation can occur when a fire hydrant is opened, when there is a water main break, etc.Under certain circumstances of unequal pressure, a non-drinkable substance could either be pulled or pushed into a drinking water supply. This is called backflow.

Backflow can reverse the flow of water or other substances into the public or private water system, resulting in chemicals or contaminants getting into the drinking water. In other words, due to changes in pressure, the water can flow in the opposite direction from what is intended. This is why the installation, inspection and proper maintenance of Cross-Connection Control Devices is imperative to the safety of your drinking water.
Backflow preventers are required to be tested annually, at a minimum. This assures that the assemblies are maintained and are in working order. If regular testing is not performed, your water system will be at risk. Governing agencies also require that the water purveyor track the history of each assembly, as well as track the testers, their test kits, and the annual calibration of their test kits.

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Backflow Prevention Systems like the one above installed at The Granary in Bellingham by Spectrum Plumbing are designed to protect your water supply from contamination. No need for the extra work required to maintain in-house backflow solutions, when we can design, implement and manage a complete hands-off, efficient and thorough backflow prevention program?  Or… Simply contact us to assist you with any portion of your cross-connection control program. We are working hard to help keep you and your neighbors potable water safe and clean.


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