Re: Filter/Pump size
Yes, having the solar engaged would add head loss and reduce flow rates so it would help some. Also, if you plumb a ball valve in the return somewhere, you can have some extra control over the flow rates if you ever need it.
Also, a large pump on a smallish filter will cause stress in many different ways. First, the excess flow rate can cause the sand in the filter to exit out the returns. It can also cause blow by, a condition where the dirt gets pushed all the way through the filter and back out the returns. So the filter effectivenes is greatly reduced when the flow rate specification is exceeded.
Also, a small filter will have more head loss than a large filter so the pressure in the filter will be higher and will tend to stress the body as well as the internal components a bit more although most filters should be able to handle fairly high pressures. Over time though, higher pressure may result in a shorter life span.
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Originally Posted by aylad
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