Smart irrigation design is vital for the long-term health and well-being of your landscaping. An irrigation system is vital. This is a short overview of backflow preventers and their functions.

The Back-flow Prevention

Pasadena’s Uniform Plumbing code requires irrigation systems to be approved for back-flow preventions.

Back-flow is when water flows are reversed by inadvertent actions. This occurs when water systems connect to irrigation methods.

Back-flow can lead to the release of harmful substances into public drinking water supplies, such as herbicides, fertilizers and other toxic substances. Back pressure, back siphonage and back flow can all cause backflow in irrigation systems.

Back pressure is when system pressure exceeds the source line. Back siphonage happens when water is drawn backwards from a decrease in pressure, or overall negative pressure on its supply side.

Plumbers Have many back-flow protection devices.

The highest level of security and protection for the atmosphere.

They should be located at the irrigation system’s facet at least sixft from the highest emission level. After it is depressurized it will fall and allow air flow into downstream pipes.

Pressure vacuum breaker (or Pressure Vacuum Breaker), is the next-level up from AVB. It features a spring-loaded check valve that opens when the water stops moving. A relief valve prevents the siphon from being broken if pressure drops below 1psi.

Double Check Valve Assembly This double-check assembly has two spring-loaded checks.

This device offers the best protection against back-flow.

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