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Old 12-06-2012, 12:18 AM   #11
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Are you talking about a "burp" from the holding tank or the pressure of the water coming out of the toilet when you flush it?
presure coming out when i flush
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Old 12-06-2012, 08:31 AM   #12
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I have the same issue with my Silverback. When I flush, so much water pressure has built up it will shoot out over the top of the bowl. Just the fresh water, not what is in the bottom of the bowl. To prevent this I always turn on the water at the wash basin for a couple seconds to release the pressure and then I flush the toilet.
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Old 12-06-2012, 08:47 AM   #13
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Sounds to me, that the water flush valve could be bad. A little dirt in the valve can cause all kinds of problems, letting to much water flow thru the valve. I would contact the manufacture and tell them your problem. Most toilets have a three year warranty. They may send you the part to remedy your problem, at no cost to you.
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Old 12-06-2012, 08:54 AM   #14
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Originally Posted by Oakman View Post
I have the same issue with my Silverback. When I flush, so much water pressure has built up it will shoot out over the top of the bowl. Just the fresh water, not what is in the bottom of the bowl. To prevent this I always turn on the water at the wash basin for a couple seconds to release the pressure and then I flush the toilet.
Solve one problem and create another!

See Repairing a Thetford Aqua Magic V to see why.

The flush valve originally had a small port hole to route water to the bowl rinse outlet. It was susceptible to clogging due to anode bits and calcium nodules in the water. Newer toilet flush valves have a larger diameter hole that resists clogging; but as you can see it increases the volume of water released during a flush. Higher water pressure makes this worse. Using a pressure reducer on your incoming water source (if using city water) or turning down the pressure on your on board water pump (might make your shower's less satisfying in both cases though).

If you look at my installation of a lever type shut off valve in the incoming water line to the toilet, you can partially close that valve to reduce the volume of incoming water to a point where the flushes are more manageable and keep water off your pants when flushing.
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Old 12-06-2012, 01:41 PM   #15
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Good information there Herk. However the problem will have to get a lot worse before I would even think to attempt a repair. I'm not one of those fix-it kind of guys. Normally when I try to fix something the problem is usually magnified tenfold when I'm done. Then I have to call a repairman.
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Old 12-06-2012, 03:39 PM   #16
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Originally Posted by Ragin Cajun View Post
I'll get a toilet burb when I'm very close to full capacity with the black tank, once I empty a portion, burb goes away...if that's your problem.
Same here, mine only "burps" when its full or very close to full
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Old 12-06-2012, 03:39 PM   #17
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Originally Posted by cjoel
I have a 2010 Cardinal 3625 , when I flush the toilet it has like a blowback presure. I checked the vents anyone have any suggestions on whats going on.
Now we know its a water supply problem, not exhaust, how bout a simple water press regulator. It only will happen iin CG with high water pressure esp off season. I've had it happen also.
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Old 12-07-2012, 03:24 PM   #18
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A much easier question related to toilets. I think the slide valve is leaking too much and will not hold water in the bowl, eg full bowl drains in less than an hour. Too much right? Service is saying "We'll.....you know they won't hold like a home commode.... DUH! My old camper held antifreeze all winter long.
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Old 12-07-2012, 03:42 PM   #19
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A much easier question related to toilets. I think the slide valve is leaking too much and will not hold water in the bowl, eg full bowl drains in less than an hour. Too much right? Service is saying "We'll.....you know they won't hold like a home commode.... DUH! My old camper held antifreeze all winter long.
Easy fix……...replace blade seal…………..
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