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Old 07-07-2020, 07:45 PM   #1
Senior Member
WearyTraveler's Avatar
Brand: Thor Motor Coach
Model: Thor Outlaw 38RE
State: West Virginia
Posts: 304
THOR #17154
Macerator pump advice...

Iím kinda tired of wrestling with the stinky slinkies. Weíre discussing getting macerator pumps for the tanks. Weíve talked about the ones that mount permanently and those that have the twist on lugs.
Our RV has 2 black and 1 grey tanks. The back toilet has its own black under the talk of the RV.

Iíve seen some older posts about a few different makes / models but nothing recently.
I donít want to muck with moving the pump from front to back but I really donít like the idea of buying 2 pumps.

Power considerations? If it fails, Am I pretty much up sihtís creek?

Any advice would be appreciated!

Charlie and my pup Hans
2017 Thor Outlaw 38RE
Maysville, West (by God) Virginia
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Old 07-07-2020, 07:50 PM   #2
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Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,089
THOR #8860
This might be sort of what yiou're looking for...
"What: me worry?"
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Current coach: Tiffin Wayfarer 24 BW
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Old 07-07-2020, 08:00 PM   #3
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Brand: Entegra
Model: Accolade 37TS
State: South Carolina
Posts: 7,298
THOR #1469
If your multi tank setup is similar to what our Challenger was it is either 2 permanent pumps or one portable that you switch back and forth. The was no way on the Challenger to connect the two grey tanks into one dump valve because the rear wheel well was between the two tanks.

My current rig uses a Sanicon Turbo and it is a good system. As soon as my extension hose comes in on Thursday my tub of stinky slinky is gone.
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk (Toad)
FMCA - F432054
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Old 07-07-2020, 08:52 PM   #4
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ducksface's Avatar
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 5,218
THOR #13932
My pump was 79 bucks on amazon.
There is no need to remove a lugged pump unless you want to.
Mine is lugged and stays perpetually mounted.

I also have power tank valves and the macerator pump and dump switches are in a remote location so I never have to duck under the slide to access our wet bay.
We don't use the slide, hardly ever, and we only dump just before leaving our park space, but it's an easy thing to add the valves and move the switch, so I did. A second set of switches could be installed inside the rv so you don't even have to go outside.

If you buy lug Mounted pumps and leave them attached, you leave yourself with a backup system in case a pump fails. We carry a slinky as back-up, could quarter turn the bad pump to remove it, install the slinky, and not really even be slowed down much by the process.

The pump I have is currently unavailable on amazon.
Just pick a pump with good reviews and spend the 2x80 bucks.

Power wise, my pump is wired with a fuse jumper to a 30 amp always hot fuse in the main fuse box.
Fuse jumper with its own fuse, run some(in my case) 8 Guage speaker wire(I wanted to keep the ground on a buss bar. You needn't) A switch in the style you choose, and you're done.
There's a second in-line switch which blocks the wet bay door from closing if the switch is in the 'on' position so I can't drive away with the system/pump activated.

Somewhere in my signature thread are pictures of the switch plate and the fuse jump.
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Below is a link to most of my modifications either accomplished or pending.

Click on my pictures then click the pop-up for a full screen zoomable picture.
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