arrived. found unit off. Kevin stated unit just keeps filling sometimes and almost overflows. did find stand pipe clogged. cleaned stand pipe. also noticed cavity very limed up. checked solenoid and found it had some debris in it. checked strainer and seemed worn. did delime unit for customer and unit seemed to be working ok at this time. will obtain new strainer and return. unit is ok for use. 5/31/18 arrived. unit was off. shut water off to unit and removed strainer. installed new. customer had stated unit was still filling to much some times. pulled upper probe and cleaned. did have some scale build up. unit is working ok at this. if issue returns will need to replace probes. ok for use.