Has anyone come across this problem with the head on a 25CC. The boat is a 1996 and I haven’t had a problem with the head until last year. The bowl fills up with water after some time. I replaced the ball check and lifted the hose a little higher coming from the seacock. It also takes a little longer for the bowl to empty while being flushed. Right now I closed down on the ball valve but after several hours the water is up to the rim. Any clues????
