I'm losing water to this nasty heat wave in the northeast, but also wondering whether a slow leak might be in play. I turned the pump off and put the solar cover down last night. When I checked this morning, the water was down a fraction - maybe 1/16 - 1/8 of an inch. If the pool is covered with a solar blanket at night, there shouldn't be any water loss, correct? I'll run a bucket test when I get a chance, but just wanted to check. Thanks.