Buy the cheapest at Amazon
View attachment 2577293 Buy the Low psi switch I posted before. Cut the float off this. Cut a T in your water line for the Psi switch and mount it. Wire the Psi switch N/O to the pigtail(blk/blk, wht/wht). Plug this into the wall outlet then plug your 110V pump to this and it should turn off your pump when there is low psi and restart when there is sufficient psi to whatever you set it for.
PS: I believe the float switch cable is a 16ga rated approx. 13.0Amps. If your pump draws more than that then this will not work as it will fry the wire. This is a disclaimer. Good luck