On Jun 19, 9:45*am, "John D99" wrote:
I've got a standard concrete septic tank setup. I recently dug down about
10 - 12 *inchs to uncover the two inspection / maintenance holes, whcih are
about 20 inches in diameter.

My question: *is there any problem in not re-filling the holes so I can have
easy access next time I want to check the tank to see if it needs a
pump-out?

Can I expect a lot of odor in the hot months if I don't cover the thing with
dirt?

I would just fill it with sand, that way you could easily dig it out
if you need access, without the potential for odor and liability.
Liability might take the form of a curious child (we lost one locally
to an uncovered septic tank), or someone falling due to the hole in
the yard.