Vacuflush vs regular macerator

The vacuum pump has 4 duckbill valves, the black pump pictured has 2.
What is your failure?

Failure to flush?

It's always a few days before a holiday that you go down to your idle boat, start cleaning up, checking this and that out, and when your about to walk aweigh, that last beer needs to be relived.
Then the smile quickly disappears; The last issue on the boat,,, The Head..
Why is it the Head always has issues rite before a holiday??

I always assume the Head got its name from being at the head of the list of projects.

Shifting to a macerating gravity flow system was a very meaningful upgrade to the vessel. Need to crack down on their noise, but overall a huge win.

I agree. One of the best mods I made on my boat was to rip out the entire vacuum-flush system and install the self-contained Raritan macerator heads. 4 years now and not a single issue or clog (knock wood). And with the option to use raw water or fresh water I’m amazed how little fresh water we use on multi-day trips now. I’m out right now on a 3 day trip with 8 people aboard and I will not have to use the Watermaker.

They must be male sailboaters . Not women with long hair!

ha! Three women, two with long hair. But seasoned boaters and I’ve trained them over the years

you keep taking them out, so I’d suggest that they’ve trained you…..

I agree with this. I had vacuflush on my two previous boats. I thought they were supposed to be the best. But every one of them was a headache at some point. I have a raritan on my current boat and I couldn't be happier. No vacuum pump clunking in the middle of the night. No returning to the boat after being away only to hear the pump running, not knowing how long its been running and why and then needing a rebuild. No searching for air leaks. No instructing people to let the pedal slam up in order to get it to seal properly after a flush.

The raritan just works and is dead simple to repair. Just a macerator pump, inlet pump, and simple control circuit.

Must agree, I'd never go back to a vaccu-flush system. Macerator is definitely the way to go. Been around a lot longer than vaccu , it must have been great marketing that got it entrenched in the industry.

VF were superior 10-15 years but motor technology has igreqtky improved and so have macerating heads

The regular macerator pumps work IF you add the 2 extra ductbills to the otherside. The threads are reverse thread on the fittings.

Not sure about this.
During the big Sea-land / Dumbetic transition, I believe the two valve rig have both right hand threads and the doubled valve bases are right and left hand threads. Thus you can not make a two valve poo pump into a four valve vacuum generating poo pump.
Further, as other mfgs, it it their own BPT design not comparable with other standard threads.

I may have been bass ackwards on my explanation but remember you could not upgrade one pump up to the other pump.

Well the one good thing about VF is that that while they may have issues and run on or whatever they will usually pull enough vacuum to “get you home”. Yes you may have to turn off the breaker and then back on but the pumps are robust and will create enough vacuum.