Backflow Testing in Clinton, MD

Signs it is time to call

• A reminder about an annual test arrived for your property
• The sprinkler system is about to start up for the season
• Water sprays or drips from the device when a zone opens
• Your home's fire sprinkler line has a testable dual check that has never been looked at
• A business near Old Alexandria Ferry Road or Piscataway Road needs its assembly tested after a remodel
• A previous test failed and the repair is still waiting

Local conditions in Clinton

Clinton grew out of the old Surrattsville crossroads, but most of its housing is newer than the inner-Beltway towns to the north; the median home here dates to 1987. That timing matters. Many subdivisions from the 1980s onward were built with in-ground irrigation, and those systems carry a testable assembly that WSSC expects to see tested annually and after any installation, repair or relocation. Homes from the later 2000s may also have fire sprinkler systems with a testable dual check valve.

Plumbing permits in Prince George's County are issued by WSSC, not the county's DPIE, and the county lists testable backflow devices among the few replacements that need a permit. WSSC Permit Services is at 301-206-4003, and the county's cross-connection line is 301-206-8601. If you are not sure your address is on WSSC, the name on your water bill settles it before anyone books a test.

What affects cost

• The type of assembly: vacuum breaker, double check or RPZ
• Whether it passes on the first test or needs new checks, springs or a relief valve
• Where it sits, from an open yard riser to a cramped mechanical room
• Whether a permit is needed because the device is being replaced
• How many assemblies the property has, which matters for churches, shops and offices

What happens when you call

You are connected with an independent local plumber who serves Clinton. Mention what the device protects and whether you have a notice in hand. Ask the plumber to confirm they hold the cross-connection certification WSSC requires, and ask for a copy of the test result for your records. If the device is leaking badly, close the irrigation valve until the visit.