cvg,
Thanks for your response! I will put a concrete pad about 2" thick in the bottom of the sump. I believe that will be adequate with the weight of the pump to prevent the sump from floating. I experimented with water flow through the 3/16" holes by trying to fill the sump as much as I could...
We have a home constructed in 1978. The crawl space is not ventilated to the outdoors but serves as the return air sysyem for the forced air heating system. The floor is concrete, apparently poured over black plastic. Occasionaly during periods of high rainfall we have water in this space. It...
