Backflow Testing in Chula Vista, CA

Signs your backflow assembly needs attention

• A letter from Sweetwater Authority or Otay Water District says a test is coming due
• Water trickles from the relief valve on an RP assembly when nothing downstream is running
• The last tester tagged the device as failed and the repair never happened
• You are adding a fire sprinkler system, a booster pump or gray water plumbing
• The brass is crusted with white mineral deposits or a test cock weeps
• Sprinkler zones lost pressure after landscape work near the meter

How backflow rules split in Chula Vista

Chula Vista has two water agencies, and the one on your bill decides which cross-connection program you answer to. Sweetwater Authority covers the western and central parts of the city; Otay Water District covers eastern Chula Vista. Check the bill before booking anything.

Sweetwater requires a device to be tested when it is installed and every year after, by a tester the Authority has certified and approved. The customer pays for installation, testing, upkeep and repair. Its list of places that need protection includes homes with an auxiliary water source, a pump or a fire sprinkler system, multi-unit complexes, wells and gray water systems.

Otay requires an assembly on every non-residential connection and on residential services it rates as a low or high hazard. Testing happens at least once a year from the install date and again after any repair, replacement or relocation, by a District-approved certified tester at the owner's cost. Single-family homes with fire sprinklers generally need an above-grade double check assembly. Otay's Backflow Department is at (619) 670-2263.

Sweetwater reports an average hardness around 196 ppm, and mineral scale is a common reason a check valve stops sealing. New or rerouted water piping is permitted through the City of Chula Vista Development Services Department.

What moves the price

• Whether the device passes on the first try or needs a rebuild and a retest
• Assembly type: an RP has more internal parts than a double check
• Pipe size, which runs larger on commercial and multi-unit services
• How hard the device is to reach inside a box or behind plantings
• Whether filing the results with your agency is included in the visit

What happens when you call

You are connected with an independent plumber who works in Chula Vista. Have the agency notice handy, say whether you are a Sweetwater or Otay customer, and ask whether the tester is on that agency's approved list. If an assembly is spraying, close the valve on the line it feeds, or the main shutoff, until help arrives.