What size rock did you use? Stall skin provides instructions on installing a leach pit, is that what you used?
That’s what I’m particulary interested in, cideuf, size and type of rock …
After I dig out all the packed shavings (not savings!), I think at least one stall will have a couple of natural “pits” that will work fine if I fill with one type of material.
Either Skins or Savers has a brochure that shows sand fill under a more secure material.
I have to make precise notes and drawing since a couple of guys offered to do the manual labor for a very reasonable rate and I want to be sure they know what they’re getting into!