A pressure vacuum breakers is the part of an irrigation system which provides protection against backflow of water. Backflow of water is when non-potable water (unsafe for human consumption) comes back into the water supply, contaminating it. Backflow protection is mandatory in Phoenix as stated by Phoenix city code.
Here is a new vacuum breaker that we just installed.
Repairing and replacing vacuum breakers
Generally speaking, about every 5 years, or as directed by the manufacturer, internal parts of your vacuum breaker should be replaced. They wear out under normal conditions and freezing temperatures also damage them. In some areas, vacuum breakers can be repaired by the homeowner, but some areas local building codes mandate that a professional must do the work. Some homeowners opt for their irrigation or sprinkler guy/gal to maintain them. Some people use a handyman. As a plumber, I do work on these but it is usually easiest for a plumber to just replace the unit with a new one.
If you want a licensed plumber to replace your vacuum breaker please feel free to call us today.