Macerator pumps

I use one at home with no problems. Pump 25' in a 3/4" hose. I grab a couple of beers and my chair and pump and flush away

A 12V motor can have just as much power as a 120V motor, so the voltage of the motor shouldn't matter. If I were going to buy one, I'd go with one with a 12V motor for the convenience of having 12V always available at the camper.

I use a Flojet when we camp for extended periods at no-hookup campgrounds. Waste gets pumped into a 30-gallon drum mounted in the truck bed & taken to the dump station.

“I never use campground dump stations,..”

NOT an option for most of us IMO.

Flojet.

Here's another DIY Macerator using a Garbage Disposal.

I have the flojet macerator as well. It works great although mine tends to overheat because I have a long run of 1" hose and I have to wait for it to cool down to continue. Not a big deal to me. I'd rather take care of things while in the comfort of my yard where I can do it at my leisure and get the tanks as clean as I want.

Somewhere on the net is a write up of using a household garbage disposal for a macerator. Here's one example. https://www.youtube.com/watch?v=YsY9WVhnm1c

I have one.. Do not often use it (only when I have to either push UP hill or a long distance) but it works well There is just one "Gotcha" that got me.. And once you know what it is (next paragraph) it won't get ya ever again.

The impeller sticks if it's not used for a while.... AND they know about it.
So the motor shaft sticks out of what I call the "Bottom" of the motor.

Before you hook it up take a flat tool (IE a quarter or washer) and insert it in the slot in the motor shaft and give it a twist in the direction the outlet suggests you should twist (clockwise I think) then hook up. and power up.

Now I fed mine with 10ga off the main fuse block and anderson powerpoles. that's the other issue lack of proper power feed.. Works great. It is SLOWER than a 3" stinky slinky (Why I don't use it all the time) but when I need it.. WOW it's nice .*I've pumped 75 feet with it and up hill.

I've used the Flojet 18555-000A pump for hundreds (if not thousands) of gallons of waste water.

https://learntorv.com/flojet-macerator-pump/