Changing to Vacuflush.

[Cpt. Harold]

Perhaps I'll get into trouble with Vic but here we go.
I'm leaning towards changing from a macerator type toilet with Lectrasan to a vacuflush/holding tank system.
The reasons are the following:
The boat is a 1973 Viking. The Lect system we used (LST) had to be installed in the bilge area next to the galley due to distance from toilet limitations according to the instructions. After 2 circuit board changes due to corrosion and too many electrode cleanings I decided I've had it with the Lect so It's already in the dumpster.

The Vacuflush system I have in mind will use a 506+ toilet, a Vac tank in the bilge area next to the galley, a SW12 pump and 20 gal holding tank in the engine room area. A discharge pump and a pumpout port will be added too.
There is plenty of space in the Viking's eng room for service. The area is DRY compared to the forward bilge area so corrosion won't be an issue for the Vac and discharge pumps. The only issue could be the Vac switch on the Vac tank but that's easy to maintain compared to 3 electric motors, fuses and circuit board on a wet bilge.

Thoughts please.

 

[Vic Willman]

I've no problem with doing that, but keep in mind that a VacuFlush flushes with pressurized fresh water, and the Lectra/San needs salt water in order to work...

 

[PascalG]

just follow the distance guidelines from Sea Land. the vac tank has to to be within a certain distance from the head, and the pump can't be more than X ft from the vac tank. the vac switch should be fine in teh bilge, just use shrink tube on the connectors. I believe the cover that fits on top of the tank/switch is ignition protected.

if you can, leave some slack in the hose near the pump. this way, when you need to replace duckbills, or if anyone flushes soemthing they shoudnlt' (like a "mouse") you can lift the pump and pull the hoses without spilling anything.

 

[Billylll]

Capt. Harold since it looks like you are going the freshwater route you should consider replacing the LectraSan with a PuraSan. The PuraSan draws about 20% of the current from your house bank. In addition take a good hard look at the Marine Elegance. You won't be taking anything apart and it uses little water like the VacuFlush.
As far as the macerator pump I agree use a SeaLand pump.
Bill