Place a deep layer of gravel in the bottom. Make sure shit isn't leaking; especially when valves are open. Your water meter should have a sensitive leak wheel. If it is moving when it shouldn't; yeppers you got a problem.![]()
When I originally installed the boxes, I put a bag in of white rock at the bottom of each valve box. It did nothing.
Gopher dirt
!
I dig a big hole under the pipe around the box and fill the whole thing with gravel except for the last four inches of dirt around the box.