410 AFT only One Vac Flush Pump 2 heads !

welchnautique

New Member
Oct 9, 2017
6
Texoma
Boat Info
89 410 Sea Ray Aft
98 Sport Nautique
Engines
454 Crusader
GT40
Having some issues on a new to me vac flush and 410 AFT. Only one pump for both heads.

1) Master head flushes but sometimes pump stays on until I flush the VIP head.
2) Replaced Duck bills and pump bellows.
3) Has anyone added another pump to the Master? Much further for wast to travel and slightly up hill.
any advice is appreciated.
 
Most Vacuflush of our generation have a pump for each head. Look for a 2nd pump or vac canister. They are pretty simple systems.
 
Most Vacuflush of our generation have a pump for each head. Look for a 2nd pump or vac canister. They are pretty simple systems.

Only one pump on this setup.Followed the wast line all the way from the vac accumulator to a Y junction by the pump.
 
Then I would check all hose clamps and the pressure switch which is located in the vac canister.
 

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