I dug trenches for my back yard at my 1st house by hand. Took along time but was not that bad. 2 zones. Rent a trencher, Digging trenches is by far the worst part.
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Originally posted by Scott R
Does that mean I could get of the damn vacuum breaker I have on the side of the house? That sucker needs to be rebuilt every summer. If they are installing that in the valve now, I'll switch.
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You should think about that.
You can get them on the valve but they MUST be installed 12" above the highest sprinkler. So instead of having one vacuum breaker sticking up you would have however many valves. Vacuum breakers should last more than a year but at your failure rate you are looking at rebuilding every valve instead of one vacuum breaker.
If you decided to install a backflow preventer of a type other than a vacuum breaker, such as a double check (might need to get a reduced pressure double check) then annual testing is required.