The pump for the toilet is not pulling water into the bowl. I already checked the thru-hull for obstructions and didn't find anything. The head is a "Mansfield Sanitary". Don't know it's age. I've owned the boat for five years and never had a problem before. I poured water from a jug into the bowl and the pump did discharge it into the tank with no problem. So I can get water out just not into the bowl. What is the likelyhood the water intake hose is blocked? Do I need a new pump, whole new head, or is there something else I need to check?Thanks for the help,Joe Mullee1983 H34 #170