Hello I have Celebrity 220cc..boat is equipped with 2 wet storages in the back (each side of the boat) this is for ice or anchor or whatever that has potential water . Each tank has a drain on the bottom of it which also has outlet thru hull by outdrive. When I get water in them they don't want to drain..when I force air or water with garden hose through the drain part..water starts to come out like its supposed to..as soon as there is no force pressure applied..water just sits there?? Am I doing something wrong? I read manual inside out and nothing talks about it. I tried feeding plastic tube through it but can't get it to feed all the way through...keep hitting hard plastic somewhere...please help! Even when you wiggle finger at the bottom (hull part) water tries to seep slowly than stops.
