On Dec 1, 11:28*am, Znott wrote:
I just dug up a bunch of clay soil/rock to get to all of the sprinkler
value piping underneath the anti siphon values and it took way too
long and tiring. *Any recommendations on what type of soil I should
replace it with so that I can easily dig up the same area for any
future repairs?

Consider widening the hole enough to put in a valve box with cover,
instead of re-burying the valves, with some gravel on the bottom of
the valve box.