OK, we are now about 16" deep. I think at this rate we're looking at this time tomorrow night. I do have a floating puck holder, and 4 pucks. Should I go ahead and drop it in now? (As in, is water deep enough; I don't want to damage anything). Weather is crazy hot; supposed to hit 107 tomorrow, and there'll be no pump starting until tomorrow night. Haven't taken a water test, but based on my tap water test a couple days ago I'm thinking the pucks wouldn't hurt now. ??