ShabbatSmart foul water pump control is certified as Kosher LeMehadrin by Rav Shraga Feivel Zimmerman - Rov and Av Beis Din of Kehillas - Federation Beis Din, London.
Application: flushing a toilet or using water in places where the foul water is collected in a Sump Tank, often installed in basement and ground floor applications, results in the water lifting a float switch and activating the foul water pump. This action is prohibited during Shabbat. ShabbatSmart Sump Pump controller, activates the pump on Shabbat at pre-set time intervals and, will stop the operation if the water level drops. This way, the user’s action does not trigger any prohibited actions on Shabbat