> 90 is too hot when it is 90-95 outside. Ours would be
> at 90 if we did not use the fountain.
> Draining and filling some with a hose won't be very
> effective as the hose outlet temp is 80 here in Florida.
> Ice won't work either - even dry ice. You'd need way
> too much. The best bet is the fountain. It is
> esentially free because you use your pool pump to power
I have a problem powering a fountain with the pool pump.
There are three outlets where water flows from the pump back
into the pool. Only one of them has a directional fitting
that might allow me to connect a hose to it. The other two
are just the ends of PVC pipe which are flush with the
plaster. The outlet with the fitting is the smallest, and
the longest run, of the three, and appears to be there only
to direct a little water over the steps. I guess I just
don't see how I would get a fountain to work unless it had
its own pump, and I'd like to avoid additional energy use.
How much temperature reduction do you get with a fountain?
Does all the return water flow go through it?
With respect to other ideas, I've had second thoughts about
the foil-topped bubble wrap. It just bothers me that it
would prevent any evaporation.
Another idea that came to me was to make a 10' x 5' frame of
PVC pipe, with one cross-piece in the middle, which in
theory should float, and lay white cloth on top of it. I
think bleached (white) muslin comes in a 60" width, and a
10-foot length of that would cost less than $10.
So this would just float on the water, and the white cloth
would in theory reflect/block the sunlight, but evaporation
could still take place. At 50 sq ft each, five panels
(probably less than $100 in total) would cover half the
pool, which might make a significant difference in water
temperature. And they would be pretty easy to put on and
And another version of this - instead of white cloth, use
aluminum foil strips, with maybe an inch of separation
between them to let air through. That would be two 25-foot
boxes of foil per panel. But foil might not do so well in