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Pressure needed for solar pool heating - Page 2

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Posted by Gary on May 9, 2006, 4:13 am
I did a little more looking around on the pump issue, and found one source that
reccomended putting a filter in that has lower back pressure.  They suggested
using a filter that is sized for about 50% more than your actual pool volume.
Not sure it thats the best way, but its something to think about.


Gary wrote:

"Build It Yourself" Solar Projects

Posted by Gary on May 9, 2006, 3:09 pm
Gary wrote:

This installation manual from SolarEnergy.com has a discussion on pump
horsepower, filter resistance, and booster pumps (if needed):


"Build It Yourself" Solar Projects

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Posted by dold on May 16, 2006, 12:04 am
That would be sensible.

Powermat.com just tells me that I'm wrong about my pressure readings, or
that there is something wrong with my filter.

He suggests that you should have a lower HP pump, trying to push less
volume.  The result would be longer run times, resulting in better water
clarity and lower power consumption overall.  That part sounds good if it's
true.  But the industry seems not to agree with him, according to his web

I'll take a look at
I'm inclined to run a separate pump, controlled by a temperature
differential controller.  If it weren't for the clogging of the DE filter,
I'd be okay with the one I have, but clogging is a bi-weekly norm.

Today, just the solar cover has the water temp very high for the first inch
or so at the surface, but a solar collector on the roof will be a good

I was off for a week, exploring the water temperatures in the Bahamas ;-)

Clarence A Dold - Hidden Valley Lake, CA, USA  GPS: 38.8,-122.5

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