Sump Pump Installation question

[Whitenuckler]

Only 12" deep? The pump is barely below the slab level. I'd expect that sump pit to be 2-3 feet deep at least which will allow your pump to have longer cycles when flows are low and also to dewater to a lower elevation so the water is farther from your slab.

We dewater for utility trenches all the time. It takes awhile at the beginning to dry them out and then much less water is pumped to keep the water level down.

Maybe the digging was too hard? Did they hit another old concrete slab maybe?

I think they didn't want to dig and dewater at the same time. Plus the pump they had would clog up anyway. You need to have the pump in a 5 gal bucket with holes and screen.