I am trying to replace the head and hoses on an IP 29. I cannot seem to find the seacock that controls the intake. If it is the seacock I believe (right outside the head), than it appears not to be working. I shut it off but the water keeps coming out of the small hose I disconnected from the manual head pump. Is it possible that it’s hooked into the fresh water tank? I can’t see where.
Hopefully it's not hooked directly to the fresh water tank! Any kind of backwash would contaminate your fresh water, yuck! A lot of IP's have the head intake "T"ed off the engine intake seacock. Try closing that and see if you still get water to the head.