I have an above ground pool and it is 18 round by 52 high and I have 2 solar heat panels that TOTAL 2 feet by 20 feet. I was told that was enough to heat my pool. Is it enough and how long should it be in the sun each day to work like it should work? Also, I have it hooked up to a divert er so I can shut the solar panels off and just let the water run from the filter to the pool. My other question is if I let my solar panels run even when no sun is out or it is raining will it make my pool colder? Thanks for any help.