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Old 10-16-2015, 02:07 PM   #1
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Help - Itasca Sunova 35J Black Tank - design???

OK folks, I experienced the infamous pooh pyramid on this trip boon docking. I have read 3 hours worth of posts on this topic and think I understand how to keep it from happening again. I also plan to order a "swivel stick" in case I have to get in there again (I pray not). Here is what I do not understand. After peering down the toilet hole, it seems to me ours does not drop directly into the tank. I think there has to be some kind of a shelf or something . Does anyone know how this thing is set up? It does "drop" below the toilet, but not very far. This seems to exacerbate the "pyramid" issue. Just curious if anyone knows how this is designed so I can avoid this experience again. Thanks
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Old 10-17-2015, 05:44 AM   #2
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Doc Vegas-

There's a plumbing diagram for your coach available here.

Looking at it, I'd say your toilet is directly over the tank. It seems to be a shallow tank, though, which I suspect makes the pile-up problem more likely.

I had a coach that did have a shelf immediately under the toilet. I learned to put plenty of water in the toilet before use. That was done by lifting the flush pedal (keeps the ball valve closed but admits water).

You may also want to start with some water in the black water tank. I know it shortens the boondocking duration-before-dumping, but your aim is to keep the solids from sticking to the tank bottom immediately below the toilet discharge.

Mark

P.S.- If you haven't already done so, you may want to download all the relevant files for your coach, available through this Web page.
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Old 10-17-2015, 05:23 PM   #3
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What Mark said! ALWAYS USE PLENTY OF WATER. Never keep the black tank open. and did I mention ALWAYS USE PLENTY OF WATER.
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Old 10-17-2015, 10:28 PM   #4
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WOW, thanks guys! I deduced too that it was probably over the tank. What a nasty mess, but of course you are right, more water. It is super obvious now, but was not at the time. I hope this never happens again. Thanks again!!!
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