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Old 05-14-2012, 06:46 PM   #1
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Sanicon

If the dump valve is open, and the Sanicon pump runs, (cap removed from the end) it should empty the tank, right? Pump is self priming as per the manual. Well it dosen't. Anyone have any ideas?
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Old 05-14-2012, 08:45 PM   #2
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Turn off the pump and close the dump valve. Now for the dirty part........take macerator apart and check the propeller for damage or "foreign" material blocking intake. Before you do that you might want to BACK FLUSH the holding tank as maybe something is blocking the outlet, before the "stuff" gets to the pump. deSanford
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Old 05-14-2012, 09:10 PM   #3
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I would by-pass the macerator with the large sewer hose and empty the tank first. You will be able to tell is something is clogged up back up the line somewhere. I would then flush the tank with clean water. After flushing the tank add a few gallons of water via the flusher fitting and try the sanicon pump again. If it still doesn't work, then take a look at the owners manual on rotating the impeller by hand to see if you can get the blockage out. If not, then take it apart.
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Old 05-14-2012, 11:19 PM   #4
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vettehead.......Take the discharge hose, hold it higher than the Sanicon unit and add water to it. This will flow water back into the unit. Occasionally, they need to be primed. If this doesn't work, you may have to disassemble the unit.

They're pretty simple. It's just a pump with a metal blade. There is a housing behind the blade that uses a rubber impeller.
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Old 05-15-2012, 08:03 AM   #5
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Pump is not (Well it is but it don't matter) "Self primed" it is gravity primed.

You do not need to prime a pump that is BELOW the level of the liquid that it is to pump. Gravity will prime it for you. Unless there is an obstruction to said priming.

A but if fresh water in the thing might help.. Who knows.

NOTE: the suggestion to hold the outlet hose higher and fill with fresh water will NOT prime the pump, water will not flow back through the pump (it can not unless the pump is broken) BUT, it will flow back through the gray water bypass (I THINK at least, Assumes there is no check valve) and this may provide enough liquid to disturb the solid that is blocking pump operation.. So the suggestion is good, Just the reason is wrong.. I would try that before doing the dirty part.
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Old 05-15-2012, 11:08 AM   #6
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Is it gray or black that won't flow?

Does any liquid flow even with the pump off?
The builtin sanicon in our monaco's has a "gray water bypass" which goes around the pump, and will allow water to flow even if the pump won't pump.

I've never had trouble with mine, but would be loath to take it off... Yuck.
If i wanted to be that close to that "stuff" i'd still use a stinky slinky...

If mine were to clog, i'd be real tempted to make a hose with 2 female ends, and try to pressure backflush it.
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Old 05-15-2012, 12:39 PM   #7
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Stick a flat blade screwdriver in the hole at the rear of the pump, & turn it -- That will dislodge anything that has it cloged -- That`s what that hole is there for -- If your pump is buried in the back, like Monaco likes to do, then you need to move it anyway--- There`s post on this forum that show`s the pump moved to the front, so the screwdriver hole is accessible -- Bill Willard
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Old 05-16-2012, 06:23 AM   #8
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Clogging is not uncommon for these pumps. The one I have seems to do this a lot. I finally quit using it for this reason. Everytime it stopped pumping I'd have to remove it, take it apart and clean it out. What's worse, when removing it from where Monaco mounted it meant spilling black or grey water, yuck, all over the bottom of the water bay.
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Old 05-16-2012, 08:24 AM   #9
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Quote:
Originally Posted by Bob (WA0MQE) View Post
Clogging is not uncommon for these pumps. The one I have seems to do this a lot. I finally quit using it for this reason. Everytime it stopped pumping I'd have to remove it, take it apart and clean it out. What's worse, when removing it from where Monaco mounted it meant spilling black or grey water, yuck, all over the bottom of the water bay.
I had a SaniCon for 2 years on a 02 MountainAire, that I installed, & have one on our 07 Camalot -- In those 7 years, I have never had a clog -- We use the same tissue that we use at home, & we do, use a holding tank chemical -- Bill Willard
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Old 05-16-2012, 09:37 AM   #10
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Same here. No clogs since I have owned it. I always tell everyone using the toilet to use plenty of water.
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Old 05-16-2012, 10:56 AM   #11
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Quote:
Originally Posted by Barlow46
Same here. No clogs since I have owned it. I always tell everyone using the toilet to use plenty of water.
I did have a blockage a couple of years ago. It was caused by a visitor dropping a piece of plastic in the tank by mistake. As mentioned earlier it is an easy job to take the pump apart if/when this is needed.
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Old 05-16-2012, 12:31 PM   #12
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I have a techma macerwating toilet, also standard....


Blockage, at least for me, is not common. My system has worked perfectly for the past year plus (knock wood)

I would never ever go back to a stinky slinky.....
Not ever, would give up camping first
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Old 05-16-2012, 04:43 PM   #13
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If you run the sanicon dry it will destroy the rubber impeller. It's not a technically difficult job to replace but it is awkward position to work. Took me about 2.5 hrs the first time, could do it in 1.5 now. The pump should make a moderately loud humming noise if the impeller is good. Mine was very quiet when the impeller went bad.
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Old 05-16-2012, 07:34 PM   #14
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My coach didn't come with one so I purchased one, and it works GREAT (so far). deSanford
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