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Old 09-17-2013, 09:59 PM   #1
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macerator failure

Well on the second day of my long trip, my macerator decided to quit pumping. Ive read plenty of threads cleaning it so the task wasnt hard. Just messy. I took everything apart and removed some hair on the chopper blades. The rubber impeller blade was in fine shape. The blockage was in the main hose. When I reassembled everything it appears I put the top blade on upside down based on another thread with pictures I found today. The attached picture is not mine. If you look at the top blade in the picture, the blade faces down. I installed my with the top blade facing up. It is working and id hate to have to take it apart again. Any suggestions?

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Old 09-17-2013, 10:06 PM   #2
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I don't understand what you mean about the "top" blade facing up. Looking at the picture it looks like two blades have more of a bend to them then the other two pointing down. deSanford Confused
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Old 09-17-2013, 10:15 PM   #3
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Quote:
Originally Posted by deSanford View Post
I don't understand what you mean about the "top" blade facing up. Looking at the picture it looks like two blades have more of a bend to them then the other two pointing down. deSanford Confused
The attached picture is not mine. There are two blade "pieces" both with bend on each end. The bottom piece has two ends that bend facing up. The top piece has tow ends that face down. I mistakenly installed my top piece with the two bends facing up instead of down. Hope that makes sense.
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Old 09-17-2013, 10:24 PM   #4
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Quote:
Originally Posted by crah View Post
Well on the second day of my long trip, my macerator decided to quit pumping.
Who is the manufacturer/brand name???
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Old 09-17-2013, 10:26 PM   #5
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Quote:
Originally Posted by Doggy Daddy View Post

Who is the manufacturer/brand name???
I have the Sanicon macerator. Inside the box is a Shurflo macerator pump just like the picture.
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Old 09-17-2013, 10:44 PM   #6
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Got it THANKS deSanford
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Old 09-18-2013, 12:41 AM   #7
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Quote:
Originally Posted by crah View Post
I have the Sanicon macerator.
Sanicon Parts: RV Sani-Con System

Sanicon Manuals (Download): RV Sani-Con System

Sanicon Warrantee: http://www.thetford.com/Portals/0/PD...20Warranty.pdf
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Old 09-18-2013, 03:34 AM   #8
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Craig - the photo you are showing is one that I have taken of my Sanicon unit.

I am sure that the blades on the photo is positioned the way they came from Sanicon. If this is the correct way could be another matter.

What I can say is that the way they are mounted is working without any problems at all. It macerates everything without jamming. However - the way you now have mounted yours could be working equally well. Who knows? Time will tell.

To prove to you that I am not telling porkies, I can show you a photo from the first time I took the macerator apart and before I removed unwanted stuff from the blades.

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Old 09-18-2013, 05:22 AM   #9
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Re the top blade facing up or down....

Up would be proper I suspect (mine has just one blade piece) but.

If it is working, DO NOT FIX IT.

IN reality those blades do not do much, they mostly stir, not chop, and up or down it can still stir just fine.
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Old 09-18-2013, 05:25 AM   #10
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From looking at the pics, I would say that you will need to go back in and flip that blade as it appears there will be a space below the blade that material can pass through without being "hit" by the blade. Having the top blade facing down eliminates that clearance factor. Go ahead and call manufacturer and see what they say but I think over time you will get a build-up of sorts on the face just below the blade.
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Old 09-18-2013, 08:07 AM   #11
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I just rebuilt my pump, the blades should be as shown in the picture that the Danes has, the lower blade points up, the upper blade points down. The upper blade should have a small tab on it that lock onto the lower blade.

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Old 09-18-2013, 05:02 PM   #12
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Quote:
Originally Posted by danes-on-tour View Post
Craig - the photo you are showing is one that I have taken of my Sanicon unit.

I am sure that the blades on the photo is positioned the way they came from Sanicon. If this is the correct way could be another matter.

What I can say is that the way they are mounted is working without any problems at all. It macerates everything without jamming. However - the way you now have mounted yours could be working equally well. Who knows? Time will tell.

To prove to you that I am not telling porkies, I can show you a photo from the first time I took the macerator apart and before I removed unwanted stuff from the blades.
Lol. Danes I didnt even notice it was your picture I copied. I just did a search and that picture was the first one with the blades exposed. Thanks for letting me borrow the picture. It would have been handy to have it before I put it back together.
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Old 09-18-2013, 05:04 PM   #13
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Quote:
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I just rebuilt my pump, the blades should be as shown in the picture that the Danes has, the lower blade points up, the upper blade points down. The upper blade should have a small tab on it that lock onto the lower blade.

Dennis
Well it looks like I mounted it wrong. It sounds a lot louder now but does work. Ill work on redoing it after this trip. Hope murphies law doesnt try to have it clunk out in the middle of the black tank dump.

Thanks all for the help.
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Old 09-18-2013, 05:10 PM   #14
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One thing I learned usisng a macerator. Use a WHOLE LOT MORE water when using the toilet then you're accustomed too. That should alleviate any further blockage problems. I know a lot of people don't believe in black tank additives either but since I've been using RV-Digest it's made by Unique I have not had problems of any kind. Good Luck.
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