Water Filtration System Repair near John Paul Ct. Repair of a water filtration system. The homeowner is concerned about the failure of the water filter. A technician was dispatched to troubleshoot and repair the system. The system's filter hadn't been changed in a long time. Mold growth on the filter. Old filters have been deleted. The system has been cleaned. New filters have been fitted. The water filtration system is now working properly. The next filter change has been scheduled with the homeowner.