The backflow preventer on an irrigation system keeps the sprinkler water from ever flowing backward into the house's drinking water. It is a code requirement with a simple job.
The connection
The irrigation line connects to the water supply, and the preventer sits between them. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Florissant, the sprinklers and the drinking supply share the same source.
The risk
If a main line breaks or a fire truck draws water, the pressure in the city lines can drop. The irrigation water could then flow backward into the supply.
The checks
Inside the preventer, check valves close against the reverse flow. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Florissant, a double-check assembly or a reduced-pressure zone valve does the job.
The relief
A reduced-pressure assembly vents water if it senses a problem, which is why it sometimes drips. That drip means the protection is working.
The test
Many assemblies must be tested yearly by a certified tester to confirm the valves still hold. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Florissant, the water utility may ask for the record.
The freeze
Outdoor assemblies can freeze, so they need draining before winter. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Florissant, a pro winterizes the whole system at the same time.
The call
Protect the drinking water. Call 888-217-3585 and Florissant Plumbing Helpers will match you with a Florissant pro for backflow testing.
Plumbing in Florissant: what to know
In Florissant, freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes. Pros in our network know the local quirks and bring the right parts on the first visit.
Across St. Louis city County — from Black Jack, Berkeley and Hazelwood to ZIP codes like 63031, 63033, 63042 — homeowners deal with the same kinds of issues. The tips above apply locally, and when a job goes beyond a quick fix, a vetted local pro is only a call away.
Need a hand in Florissant?
If a plumbing issue is beyond a quick fix, don't wait for it to get worse. Call 888-217-3585 and Florissant Plumbing Helpers will match you with a vetted local pro — usually within minutes. Learn more about plumbing help in Florissant.