I have a major leak in my pool 20,000 gallons in ground concrete with vinyl liner 40ft * 19ft. Last night I lost nearly 650 gallons in 15 hours (with bucket test, so this is above evaporation of about 132 gallons) with the pump off. Help !
water level is still in skimmer boxes. This sort of leak has happened before, but intermittently. Other times it is fine, I'm confused..any ideas?