Hi all. I've read through everything I could find here, but still can't determine what the flow rate should be through solar panels hooked up in parallel.
The panels I'm looking to get are the Fafco "Solar Bear" 4' x 20' panels.
The Fafco specification sheet states that the recommended flow is .1 GPM per sq ft, which for a solar bear (which is 75 sq ft) equals 7.5 GPM.
However, the manual assumes you're hooking it up so that the flow goes down the panel one way, then turns around and comes back. Essentially the water is traveling in a 2 foot wide panel for 40 feet. (see figure 1)
So if I hook mine up with the center valve open, and have it exit out the other side, It's a 4 foot wide path, and I can double the flow rate, right? So each panel can carry 15 GPM? (see figure 2)
Ultimately I would like to hook up 2 panels in parallel, so can I assume that the ideal flow rate for this configuration is 30 GPM? (see figure 3)
The panels I'm looking to get are the Fafco "Solar Bear" 4' x 20' panels.
The Fafco specification sheet states that the recommended flow is .1 GPM per sq ft, which for a solar bear (which is 75 sq ft) equals 7.5 GPM.
However, the manual assumes you're hooking it up so that the flow goes down the panel one way, then turns around and comes back. Essentially the water is traveling in a 2 foot wide panel for 40 feet. (see figure 1)
So if I hook mine up with the center valve open, and have it exit out the other side, It's a 4 foot wide path, and I can double the flow rate, right? So each panel can carry 15 GPM? (see figure 2)
Ultimately I would like to hook up 2 panels in parallel, so can I assume that the ideal flow rate for this configuration is 30 GPM? (see figure 3)