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Old 07-03-2016, 04:23 PM   #1
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1976 29' Ambassador
Atlanta , Georgia
Join Date: May 2016
Posts: 44
Black tank blues

I'm rehabbing a '76 Ambassdor. I got the inside gutted, mostly got the inner skin out, and once the endcaps are out and the floor gone, I can check on the tanks. Except I think I know what kind of shape the black tank is in... Back when I was gutting the interiors, I pulled the toilet and saw a neat, decomposed mound of waste sitting directly under the toilet. It was odorless, not that I took a big whiff off anything, but from what the PO told me earlier, I'm guessing it's his grandad's err... remains. He apparently lived in an ocean front RV park until he passed and willed the AS to the (briefly) PO. Perhaps during his last few weeks, he didn't quite make it to dump station.

So I'm assuming I have a dried out, caked on pile of waste in the black tank. I'm not squeamish. I will go elbow deep(with gloves!) if I have to. But I'd rather work smart than work dirty. What's my best option? Right now, I'm considering filling the black tank with water and an entire jug of bleach and driving an hour on some bumpy country road.
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Old 07-03-2016, 04:36 PM   #2
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1963 26' Overlander
Dallas , Texas
Join Date: Sep 2009
Posts: 91
I dont think I would worry a bout it. If there is no odour just put a rag in the hole to keep everything in and out of the flange. If you end up pulling the tank you can deal with it then or if not deal with it when you have a toilet connected on top. Might be good on the tomatoes

It will certainly reconstitute and flow out once you introduce water to the tank.
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Old 07-03-2016, 05:00 PM   #3
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Baltimore , Maryland
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I wouldn't fill the tank completey to clean it out. The water in the tank needs to slosh around, and that won't happen when the tank is full.
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Old 10-21-2016, 04:08 PM   #4
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1976 29' Ambassador
Atlanta , Georgia
Join Date: May 2016
Posts: 44
For posterity, in case people with similar problems bring this up in a search...

Like Trnpk Crsr suggested, I half-filled the black tank with water and bleach solution and over a few tows of about an hour in length, it completely broke down the gunk and the tank looks very clean. I definitely overthought this so Alcoa Roller was completely correct.
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