Question about solar panels

[farmgirl]

AHA! I went home on lunch hour to see if the panels would do anything different with a few adjustments. I read earlier that if your flow from your pump was too strong, you may get incomplete flow thru the panels. So, I diverted the water flow by half, and guess what........with the water diverted, and the pump on the HI setting, ALL the panels turned cool (ie, they were working!) Weird, but i still do not understand why the 2 center panels do not work if the pump is on low. Any ideas? I did not think this was so complicated!!!

[matt4x4]

Question:
Are you feeding the panels on the lowest point or the highest point?
It's probably best to feed at the lowest so any air pockets can get pushed out.
I would still take one endcap on each of the suspect panels off and see if you can push a stick/rod through to the other end cap - who knows, maybe the labels are applied wrong - unscrewing the caps is not much work so it may be worth a try.
Another thing is that trapped air may then escape and alleviate this issue in the future.