A backflow assembly keeps the building's water from flowing back into the city main. Every commercial water service, irrigation meter and fire line has one. The water provider requires each to be tested annually by a certified tester and the report filed.
What happens if you miss it
A notice, then a second notice, then the provider can shut off the water. We have been called to buildings on the morning of a shutoff more than once.
What a test involves
A certified tester connects gauges, checks each valve and relief, and files the report with the provider. Twenty minutes per assembly if it passes. If it fails, the repair is usually a rebuild kit and another twenty minutes, if the tester carries the kit.
The easy version
Put every assembly on one contract with one date. We inventory them, schedule the test before the provider's deadline, carry rebuild kits for the common sizes, and file the reports. The property manager gets one email a year that says done.
Medical gas verification: what to expect and why it fails
The independent verification is the last gate on a medical gas system. Here is what the verifier tests, what fails most often, and how we have kept corrections at zero.
Grease interceptor sizing: why the health inspector and the plumbing inspector disagree
Restaurant owners get caught between two codes. Here is how sizing actually works in East Valley jurisdictions and what to decide before the slab is poured.
Five reasons a new hydronic system does not perform, none of them the chiller
When a brand-new chilled water plant will not hold temperature, the chiller is almost never the problem. The piping usually is.
Send the drawings or describe the building.
A project manager or Carol replies the same business day. Contract clients on the 24-hour line get a plumber, not a service.