If you do decide to start looking for the problem yourself, the first step is to eliminate obvious and visible leaks. Check around the equipment for evidence of leakage or moisture. Carefully check all fittings that go into or out of the pool pump, filter, or heater. Check for leaky pump lids, leaky valves, or leaky seals. Also check to make sure that your multi-port valve is not leaking water to the waste line. If it’s possible to see where this backwash line empties, check to make sure that you don’t see water flowing or dripping from here.
If your pool continues to leak call NPS Leak Detection 336-971-5809, npsleakdetection.com #poolleak