This video shows the step-by-step process of adding a pressure reducing filter to an irrigation valve as needed for converting to a drip irrigation system for areas such as southern California where anti-siphon valves are used. It also shows how to replace a valve if needed.

Please note that the valves and overall setup depicted here are typical for areas like southern California (low elevation), where frost protection is not needed for the lines, and most single family residential homes use anti-siphon valves, which must be installed above the soil to function properly, so are not buried in valve boxes. If you are in another part of the country, standard irrigation system parts and installation details may differ.

CORRECTION: At minute 36 the video mentions that anti-siphon valves should be installed to be 1' above the highest level of the irrigation system connected to that valve, when that valve is operating. The correct height is 6" above the highest point, not 1'.

While potentially on its own, this video was created as a supplement to our Retrofitting Lawn Sprinklers for Waterwise and California Native Gardens online workshop video:    • Retrofitting Lawn Sprinklers for Wate...