It was a long process, but it is now working. Main cause boatyards
not properly rebuilding head. They did not replace the rubber gasket
on the pump piston. Not knowing this initially, when the head did not work we pursued other courses of action, including replacing all waste hoses, and modifying discharge from head with a ninety degree elbow
, and ensuring all hoses were clear. We then replaced the ninety degree elbow
and returned system to its original configuration. The instructions that come with the rebuild
kit do not mention removing the piston and replacing piston ring. This is a omission by the raritan
company. I have notified the company. Thanks for your interest and help.