Fastlanefive
New Member
I have a 1999 370 ac. About every time I try to use the sea land discharge pump it runs but won't pump out! I then have to take the hoses off and I will find the duckbill valves have been flipped inside out. I will then replace the duckbills and the pump will work fine for a time or two. I have talked to sealand and they thought I must have forgotten to open the seacock but I make sure each and everytime that is not the case. It has become a great source of frustration cuz each time I make a stinky mess to replace the duckbills. Would appreciate any help or advise! My discharge pump does not have impellers I am told, so a fried impeller can't be the issue. Help!