FlowGuard — Lake Stevens, WA
About FlowGuard
FlowGuard exists for one job: backflow testing and certification in Lake Stevens, Washington. We're a service-area business — no storefront, no counter — serving Lake Stevens and the surrounding Snohomish County area, from Cavalero Hill and Frontier Heights to North Lake Stevens, Soper Hill, and South Lake Stevens.
What we do: annual backflow testing, certification paperwork filed with Snohomish County PUD, repairs with original-manufacturer parts, new installations sized to the hazard, irrigation testing, and help after a failed test. What we don't do: upsells, invented urgency, or paperwork you don't need.
Every test follows the field procedures Washington's Department of Health accepts, using a calibrated differential-pressure gauge — and every report is filed with the PUD. A test that isn't documented might as well not have happened, so the paperwork gets the same attention as the wrench work.
FlowGuard — Compliance
Why Water Safety Matters
Backflow is water flowing the wrong way — from your property back into the public water system. It happens two ways. Backsiphonage is a vacuum in the main, caused by things like a water main break or heavy hydrant use, that can siphon water backward out of your pipes. Backpressure is pressure from your side exceeding supply pressure — from a booster pump or thermal expansion, for example — pushing water back into the main.
Your irrigation system sits downstream of your drinking water, and what's in it isn't drinking water: fertilizer, pesticides, pet waste, stagnant water sitting in warm pipes all summer. Without a working assembly between the two, a backflow event can pull all of that into the supply. That's what the backflow preventer stops — and that's why it gets tested every year.
Lake Stevens runs on one integrated PUD system serving around 22,500 connections. One unprotected cross-connection can affect more than one home, which is why Snohomish County PUD requires annual testing at the owner's expense. It's a small yearly job that protects a very large shared resource. If you need backflow testing in Lake Stevens, WA, that's the job we're here for — call (425) 548-1928.
