In the first photo, the white cable from your cell goes to the SWG controller. There's conduit running from the bottom of that box over to a subpanel or load center. Take a look in there and see if there are any round timer dials. If you or your husband don't have experience with home electrical systems, you might want to get some professional assistance. If there's no timer in the grey box, a timer should be installed between those two boxes to control the SWG.
Until the SWG is connected to a timer, you can manually shut down the SWG controller when the pump is off or run the pump 24/7.