I have a solar heat systgoldlineem on my pool. It's controlled by an aqua solar controller and uses a electric controlled goldline 3 way valve. I had read somewhere that this valve should be rendered "leaky"so that when the water was not going to the roof the water was able to drain out of the panels and not "hang"in the panels.
To accomplish this I removed the seal inside the valve. I think it bypassed too much water as it did not heat nearly as good as the year before when the seal was still in place. I still want to have the water return to the pool when not heating but don't need that much bypass. I'm thinking of reinstalling the seal and drilling a hole or two in the valve but.....what size hole(s) should I drill? Any experience on this anyone?
Thanks in advance