Originally Posted by dr_finklestein
I have been getting air in my line, right at the valve on my mash tun, when I recirculate. I have checked the clamps on the hoses to my camlocks, took apart my ball valve, and replaced my mash screen, but still get air in the hose. It only happens once the grain bed gets settled. Any ideas where this is coming from? Is it the camlocks?
sounds like a leak somewhere. a steady stream of air is not caviation from the pump. if there is a bit of weight pulling the camlock connection to one side, that could create a small opening near the seal and let air in. an easy test is just pushing the fittings together as hard as you can and seeing if the bubbles stop.
if you see the bubbles in the hose between the mash tun and the pump, i would suspect the camlock on the mash tun. if you see the stream of bubbles only coming out of the pump, i would suspect the camlock on the pump input.