My new MH came installed with a Dometic 8700 Master flush macerator toilet. I am very familiar with a macerator that you hook up to your sewer to pump uphill but I am not at all familiar with a macerator toilet.They are obviously not the same. The sewer macerator is very slow but this macerator toilet acts like a home toilet. When you flush the toilet, it moves the bowl contents out quickly and quietly.The thing that concerns me is that I'm afraid it will eventually get clogged like my old sanicon. I live with a wife and two daughters and I find their long hair absolutely everywhere including floating around in the toilet.I'm hoping to hear from those of you who have lived with a macerator toilet for a while or are very familiar with them. Is this thing easily clogged and if it does get clogged, how hard is it to clear?

.Don't have one - interesting question - waiting to hear replies..:@~

I have this scary image in my mind of sitting on something with a grinder that close to my gentleman thingys.

The Macerator is located inside the base of toilet.When flushed macerator pulls water out of toilet, grinds and then discharges into drain line to black waste tank.Here is exploded viewHERE is parts listManual

holstein13 wrote:My new MH came installed with a Dometic 8700 Master flush macerator toilet. I am very familiar with a macerator that you hook up to your sewer to pump uphill but I am not at all familiar with a macerator toilet.They are obviously not the same. The sewer macerator is very slow but this macerator toilet acts like a home toilet. When you flush the toilet, it moves the bowl contents out quickly and quietly.The thing that concerns me is that I'm afraid it will eventually get clogged like my old sanicon. I live with a wife and two daughters and I find their long hair absolutely everywhere including floating around in the toilet.I'm hoping to hear from those of you who have lived with a macerator toilet for a while or are very familiar with them. Is this thing easily clogged and if it does get clogged, how hard is it to clear?I really don't know much exactly how they work, but it seems they would prevent the proverbial pyramid of "DOOM" since all the solid waste would be ground up first so there aren't any real solids to speak of.With that being said I also would wonder just how thick the slurry/liquid is and how well it flushes out especially in the sewer hose.Larry

ScottG wrote:I have this scary image in my mind of sitting on something with a grinder that close to my gentleman thingys.I don't care who you are, that one was funny. (but true) and the older you get, the closer it becomes.bumpy

How does a macerator toilet work? | Good Sam Community

18 Replies

ryegatevt
Explorer II
Nov 18, 2014
Add some extra water before you flush. Should not only help the flush but also the solids in the tank. Our macerator works when we dump, but we always add extra water.
holstein13
Explorer
Nov 18, 2014
Thanks Old Biscuit. That's a good find on the diagram. I had read the manual but the only clue I found was a vague reference to foreign objects in the pump. They mention that we should close the seacock before clearing them. Obviously a reference to a marine installation.

Looking at the diagram, it appears as if the macerator is very similar if not the same as a regular macerator. There are two things that comfort me. 1) this is only one of two toilets in the MH and the kids toilet is a regular gravity fed device. and 2) the grey water tanks are not going through this. I suspect that the showers end up with more hairs in them than does the toilet.
Chris_Bryant
Explorer II
Nov 18, 2014
holstein13 wrote:
They are obviously not the same. The sewer macerator is very slow but this macerator toilet acts like a home toilet. When you flush the toilet, it moves the bowl contents out quickly and quietly.

I believe they are more alike than you think- the toilet is dealing with *far* less 'material' than pumping out the whole tank, plus the discharge is likely to be larger for the toilet- I would bet 1 1/2".
Bumpyroad
Explorer
Nov 18, 2014
ScottG wrote:
I have this scary image in my mind of sitting on something with a grinder that close to my gentleman thingys.

I don't care who you are, that one was funny. (but true)
and the older you get, the closer it becomes.
bumpy
LarryJM
Explorer II
Nov 18, 2014
holstein13 wrote:
My new MH came installed with a Dometic 8700 Master flush macerator toilet. I am very familiar with a macerator that you hook up to your sewer to pump uphill but I am not at all familiar with a macerator toilet.

They are obviously not the same. The sewer macerator is very slow but this macerator toilet acts like a home toilet. When you flush the toilet, it moves the bowl contents out quickly and quietly.

The thing that concerns me is that I'm afraid it will eventually get clogged like my old sanicon. I live with a wife and two daughters and I find their long hair absolutely everywhere including floating around in the toilet.

I'm hoping to hear from those of you who have lived with a macerator toilet for a while or are very familiar with them. Is this thing easily clogged and if it does get clogged, how hard is it to clear?

I really don't know much exactly how they work, but it seems they would prevent the proverbial pyramid of "DOOM" since all the solid waste would be ground up first so there aren't any real solids to speak of.

With that being said I also would wonder just how thick the slurry/liquid is and how well it flushes out especially in the sewer hose.

Larry
Old-Biscuit
Explorer III
Nov 18, 2014
The Macerator is located inside the base of toilet.
When flushed macerator pulls water out of toilet, grinds and then discharges into drain line to black waste tank.

Here is exploded view

HERE is parts list

Manual
ScottG
Nomad
Nov 18, 2014
I have this scary image in my mind of sitting on something with a grinder that close to my gentleman thingys.
ol_Bombero-JC
Explorer
Nov 18, 2014
.

Don't have one - interesting question - waiting to hear replies..:@

~

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How does a macerator toilet work?

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