Thank you, apparently this sea cock was closed, problem solved.
Thank you, I have found one y valve, the other reply totally solved the problem, thanks
Does anyone have experience on the macerator for a Carver 1986, 3207. Last season it would not pump out holding tank. Shore pump out emptied tank....
I've read that Defender carries the Bowmar replacement port hole windows, just the plastic window part. Does anyone have details of part numbers?