How to build valve box
What is the best way to "build" a valve box? Specifically, rock, wires, and PVC.
I recently had to repair wiring where 3 zone valves were buried - under mostly dirt. After digging everything up, I wanted to go back with boxes that were the best for future maintenance. I've read and looked at photos online but can't find the very best solution.
It seems 2" clearance under PVC is best, then a layer of 3" or so of rock (which type?) is most common. But... can you put rock everywhere else (next to zone wires)?
Then I see several valves located right next to one another. Here is something I found online:
If you have a valve go bad and have to cut the PVC, you are going to have to replace every freaking valve!! The PVC is far to short between joints! Am I missing something?
What is the VERY BEST setup for future maintenance/support? I want to re-wire, re-plumb, replace valves, with low maintenance... do it right the first time. What is the solution?