"Ross Mac" wrote in message
. ..
I run my pool pump about 6 hours a day as recommended by the builder. I
think this is excessive from the calculations I have made from several
websites which recommend 2 to 3 hours a day for my equipment. The pump is
a
Whisperflow WF26 @ 1.5 HP and plumbed with 2 inch PVC. The cartridge
filter
is a Pentair CC150 with 150 square feet of media and runs clean at 8psi.
The
pool is somewhere around 9500 gallons and is screened in to keep the
creatures of Florida out. As far as "feet of head" I can only guess at 40
or
so. I have had no problems with the pool but would like to save on the
electric bill if at all possible. Can I get away with 3 hours or so??
Thanks in advance for any help.....Ross

I had a sand filter of the 400 foot varity with my pool. My climate might
be similar to yours, Phoenix.
I stopped using the pool by late September. I would get the water high on CL
and then run the pool 6-8 hours a week. I had one of the in-the-water
Hayward's. Yep it would get dirty. I found that a daily run was less
effective than a long one once a week. I would brush and skim the pool on
during this once a week run. When the pump was done I would back flush the
filter and wait another week.
My pool was out side and if there was a storm then more run time was
necessary.

Experiment, you have everything to gain.