Originally Posted by philsboat
Maybe you could install a tee in the line with a valve open to atmosphere so you could open it after sailing to burp out any trapped air.Had the same problem with an airconditioning pump on a Norseman 447.We just pulled the water line off to let the air out.A tee and a ball valve would be quicker.
Where was the air coming from? It seems to me that if you have air in the system you've either got a leak (doesn't make sense in Rik's case), or you are draining water and taking on air in the intake while heeling. I'm betting that when Rik sails in some real wind the problem will occur again. I would shut the intake valve before heeling. If it doesn't occur...problem solved. If it does, I never claimed to be a mechanic
It's hard to believe they would place an intake where it would be exposed to air in anything less than a knock down, but apparently they do. My intake is about a foot from my keel. If it sees daylight, I'm on my side!