Originally Posted by Wet_Boots
you should be using concrete boxes for the expensive work in the insubstantial soils - mister homeowner can have antisyphon valves, and like it
PS - that looks like a crap box you get at the home center
I didn't put them in. Concrete is a good idea but not practical since the HOA is not likely to spring for the expense, we have 36 of them in the ground in various places.
Don't know any home owners with 3" valves... yet