During annual maintenance on this SuperSump Sump Pump System in Madison, NJ, Service Technician Willie first removed the airtight lid to access the 1/3 hp cast-iron pump for cleaning. The check valves were changed and the float switch was checked. Batteries on the WaterWatch alarm were replaced and the sump pump liner was cleaned and sanitized before the pump was reassembled. The service enhanced the operation and life of the homeowner's SuperSump System, continuing to provide an efficient wet basement solution!