odour

My new to me 1989 340 Express has a couple of issues. The water stinks when running the taps or putting water in the toilet bowl via the pedal. I obviously need to drain & refill & am unable to figure out how to do that Also when I stand on the dock behind her she is listing slightly to the...

I have been fighting with an occasional bad smell from the head holding tank after flushing. I have determined through trial and error that the smell is venting from what I believe to be the vacuum release valve on the top of the tank. When the tanks are pumped out, this rubber flap allows air...