Sump pump in narrow pit hanging on pipe and chain as back-up electric pump

A customer wanted an electric pump in a small sump pit.

There was no room in the sump pit to fit in bricks to raise the back-up pump off the pit bottom.

So we hung the secondary pump from a pipe and chain 8 inches above the float of the main sump pump.

Measure the PVC pipe of the back-up pump.

Connect the check valve with couplings.

Glue Y to connect with the discharge line and with the main sump pump line.