If the system is sealed, then you get the head loss back.
However, solar is typically not sealed.
There is usually a vacuum breaker somewhere.
For example, if the water has to go up 30 feet and the vacuum breaker is at 20 feet, you get back 10 feet plus the dynamic head loss from the roof to the pool.
I would suggest the intelliflo pump with a solar controller that adjusts the flow when heating.
If you want a single speed pump, a 1.25 total hp WhisperFlo might be a good choice for you.
The WFE-3 (3/4 full rate) and the WFE-24 (1 hp up rated) WhisperFlo pumps are both 1.25 total hp. They're the same exact pump.
You typically want about 4 gpm per panel. So, at 12 panels, you would want about 48 gpm.
However, solar is typically not sealed.
There is usually a vacuum breaker somewhere.
For example, if the water has to go up 30 feet and the vacuum breaker is at 20 feet, you get back 10 feet plus the dynamic head loss from the roof to the pool.
I would suggest the intelliflo pump with a solar controller that adjusts the flow when heating.
If you want a single speed pump, a 1.25 total hp WhisperFlo might be a good choice for you.
The WFE-3 (3/4 full rate) and the WFE-24 (1 hp up rated) WhisperFlo pumps are both 1.25 total hp. They're the same exact pump.
You typically want about 4 gpm per panel. So, at 12 panels, you would want about 48 gpm.
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