Thanks for the help guys... One part of my problem is solved. I checked the water pump and it was making a constant running noise, but no water was being vacuumed from the tank. I took it out and into a marine supply shop and we tested it, poured water in the intake and it just pooled. So I bought a new one and put it in and it runs great. Water system now working! With regards to my vacuflush, when I press the toilet foot pedal, water now enters the bowl, but no motor sound and no vacuum sound. I did have this thing fully surveyed, but I'm thinking the surveyor never checked to see if the vacuum and motor for vacuflush worked. It appears to be working as water enters the bowl. I don't think the previous owner ever used the toilet (I'm going to call him and ask). I know he probably didn't use the water system... it still had winterizing liquid in it. The water pump was 14 years old (same age as boat) looked in excellent condition (probably not used much). The vacuflush system components appear in great shape, I'm thinking it was rarely used if ever. So where do I start with troubleshooting the vacuflush? Take off the motor and take it in to see if it works? The users manual says to "short the B wires" as one of the troubleshooting steps, can I do that with a regular 12 or 14 gauge speaker wire? I am a little concerned with getting into the wiring for the vacuflush. It seems to be hard wired in, no switch anywhere for it. Where as the water pump had the switch on the dash so I could ensure the power was cut, before getting into the wires. Thanks for the help.