On Mon, 13 Feb 2017 14:01:36 -0600, RonNNN wrote:

In article , says...

writes:

I've been researching the pros and cons about a pit. My decision is
to build one in my new 3000sf home shop.

Any idea where your water table is?
You might need a sump pump.

You must have missed this in the OP's post...

"-sump with pump and oil-water seperator."

Net cop does that. Be careful as he will kill file you when you make
a point of fact.