A double check backflow assembly with two blue shut-off handles in an open box in the lawn

Backflow Repair

The backflow device keeps sprinkler water out of your drinking water. When it leaks or cracks, call (346) 627-2444.

Call (346) 627-2444

What it does

The backflow preventer is a set of check valves on the irrigation line that stops water in the sprinkler pipes from being drawn back into the house supply. Texas rules require backflow prevention on irrigation systems connected to a potable water supply.

A double check backflow assembly with two blue shut-off handles in an open box in the lawn

Common problems

  • Spraying from the top when the system starts
  • Cracks after a hard freeze
  • Devices buried in beds or overgrown
  • Test notices from the water provider

Testing requirements vary by water provider. If you get a notice, call us with the deadline. More in backflow preventer basics.

Repair or replace

Many backflow devices can be repaired with a kit that replaces the seals, springs and poppet. A body cracked in a freeze usually means a new device. Either way, the device has to be the right type for the system and installed at the right height and location. Some water providers require a test after a repair or replacement; we will tell you if yours does.

Questions people ask us

Can I remove a leaking backflow device?
No. It protects your drinking water and is required. Close the irrigation shut-off and have it repaired.
Does it need insulation?
Before a hard freeze, shut it off, drain it and wrap it. See freeze protection.

Sprinklers acting up? Give us a call.

Tell us what the system is doing and where you are. Most calls turn out to be a broken head, a stuck valve, a leak or a controller problem, and a few questions on the phone usually tell us which.

Call (346) 627-2444
Call (346) 627-2444