Paul Ironside

Update: Did as you suggested and cleaned non return valves and bingo all working now. thanks so much for your help. happy boating and stay safe Paul

thanks for getting back to me. yes water staying in bowl. to rule out toilet I taped some plastic bag over end of pipe where it joined toilet, pressure built up till plastic burst and still pump running, would imagine system way over pressure to do that. will check out what you suggest. thanks again Paul

hi guys, just fitting a second hand VT2500 in my Colvic, vacuum pump will not stop running. There does not seem to be any leaks in system. Think it is vacuum switch, as pump will stop if switch operated manually. having trouble sourcing new switch. Any advice / guidance would be much appreciated. Thanks in advance.