Time for a update. Sump running good and just completed ATU ot works on 4 float switches 1st & 2nd float actual water level 3rd in RO tank to stop pump and alert if RO is depleted or fault is detected 4th in sump to alert on overall sump water level witch will tell me of pump fault and over filling. All programed to give audio and visual alerts. Next would be a gsm alerts aswell