Vacuflush

[Meoldsocks]

On my 460 hunter the vacuum generator pump runs much longer than it should and will turn on several time an hour if I leave it on. Water stay in the bowl and I have checked all hose and bowel. Last year I replace the duck valves it helped but slowly the problem came back. Below deck I have some smell of the toilet the rear pump has no smell.
My question do I need to replace the below? And the duck valves?
Brian

 

[rtmccue]

pressure switch

I switch my pressure swith with the aft head on my 450 and the problem whet to the aft pump . So check the switch

 

[sailor420]

Besides the pressure switch, and duck valves check or replace the o-ring that is in the peddle assembly. It would not affect the water level but would allow vacuum to be lost

 

[Meoldsocks]

Thanks I will try both suggestions