I have a Hunter 28.5 1984.I noticed that my potable water lines are leaking under my bathroom sink.On further investigation I found that the compression tees on the potable water lines are leaking.I want to replace these compression tees but I'm not sure where to get them.I looked up the tees in West Marine and they have them but they are for 15mm lines.My lines say they are 1/2" ?Does anyone know the potable water line size on an 84 Hunter? where can one find the right compression tees?