I've recently installed a sump pit and pump in the basement of my little brick bungalow.
The holes in the sump basin were drilled about 12 " up from the bottom of the basin. This allowed me to put a garden hose in the basin to test the pump switch, etc.
Everything tests out. The sump system is functional. But there's 6-10" of water staying in the basin. It will become rancid/fetid.
The sump system is not needed very often. I am thinking of drilling a few holes in the bottom of the basin so it will drain during dry spells.
Can anyone think of reasons -not- to do this?