I built my own solar heater from an old pool pump, 100' of black garden hose attached to plywood painted black, encased under 2 old storm windows I bought for $3 each. Jury is out on whether it is helping or not.

QUESTION- would the solar cover (somewhat translucent blue bubble wrap) work better if I removed it during the day, and just used it overnight like a blanket? It seems to shade the water and I think the water would warm up better with the sun shining through to the bottom. I think solar cover is a mis-nomer, it is more of an insulated blanket.

The average high in WI is 75 degrees now and the lows are in the 50s. I'm trying to eek a couple more weeks out of the pool. So far it isn't working, pool is ranging between 66-72. I need 78 to get the kids in it!

Why can't we post pics? It would be a lot more fun.
-Shawn