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Old 12-31-2014, 08:26 PM   #1
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Possibly replacing macerator blades on new toilets

I read on one of the posts that it will be necessary to replace the blades on the Sanicon macerator black tank drain from time to time and was wondering if anyone has any experience with how long the blades will last on the new type toilets that Newmar is now using? And what it might take to reach the mechanism to replace them if/when necessary. And exactly how does a person know when this might be necessary, other than the drain hose will probably stop up with solids.
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Old 01-01-2015, 07:13 AM   #2
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Blades

I read on one post here of a guy doing it. Maybe he will chime in. I needed them replaced in our 07 coach. Had extended warrantee and they replaced entire unit $1000. What a waste of money.
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Old 01-01-2015, 06:36 PM   #3
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Originally Posted by FLYING BUTCH View Post
I read on one post here of a guy doing it. Maybe he will chime in. I needed them replaced in our 07 coach. Had extended warrantee and they replaced entire unit $1000. What a waste of money.

The Sanicon macerator uses a small rubber impeller to pump, which can get damaged by solid object left in the holding tank from construction. If that happens, the pump has to be rebuilt by replacing the impeller and using new gaskets. Mt Sanicon was damaged by a tank cut-out which came out of the grey water tank 3 years after purchase.
The Dometic macerator toilets used by Newmar on the 2015 coaches use stainless steel blades and are virtually indestructible. I have not have the need to clean one out, but it is easily removable by removing two pipe clamps. I Doug that normal usage will require any maintenance on the impeller.
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Old 01-02-2015, 06:44 PM   #4
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The Sanicon macerator uses a small rubber impeller to pump, which can get damaged by solid object left in the holding tank from construction. If that happens, the pump has to be rebuilt by replacing the impeller and using new gaskets. Mt Sanicon was damaged by a tank cut-out which came out of the grey water tank 3 years after purchase.
The Dometic macerator toilets used by Newmar on the 2015 coaches use stainless steel blades and are virtually indestructible. I have not have the need to clean one out, but it is easily removable by removing two pipe clamps. I Doug that normal usage will require any maintenance on the impeller.
Thanks Andy, at least the stainless steel blades are one piece of good news compared to everything else about these bathrooms.
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Old 01-02-2015, 09:54 PM   #5
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The Sanicon macerator uses a small rubber impeller to pump, which can get damaged by solid object left in the holding tank from construction.
Andy, before I installed my SaniCon in my Ventana I tore it down to see what spares I would need and to be prepared to do a rebuild on the road if necessary. It is fitted with stainless steel macerator blades. Also very easy to dismantle and rebuild when necessary.
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Old 01-03-2015, 05:46 AM   #6
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Scott, you are right, the Sanicon's macerator blades are stainless, but it uses a rubber impeller to pump the effluent, which can be damaged and repaired using the Shurflow 94-571-00 Impeller kit.
Thetford and Dometic macerator toilets use the macerator blades to pump. The Dometic toilets Newmar is using for 2015 are using a stainless steel macerator / pump assy and reduced water consumption relative to the previously used Thetford, which I was told, was more prone to plug up.
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Old 01-03-2015, 06:26 AM   #7
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Andy, have you experienced any failures of the impeller on the SaniCon unit? I didn't have any problems with the SaniCon on my Ventana but didn't have a long service history so not sure of how often the impeller will need to be replaced.
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Old 01-04-2015, 07:25 AM   #8
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Yes, I did. 3 years after we took delivery, a piece of plastic in shape of a washer about 3/4" diameter, came out of the grey water tank. It was created when they drilled the tank for some fitting during the manufacturing process.
It managed to tear off two blades of the impeller. And it had to happen on the Yukon.
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