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Old 09-28-2007, 08:01 AM   #15
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Quote:
Originally Posted by Doogie521
Andy's Comment "The original tank has not been available for many years"...
..is not what I wanted to hear this morning. I also have a 23' safari, 1970, and am looking for a black water tank. I took mine out to replace some floor and found it had a crack around the ring where the toilet collar screws into it and also where the vent pipe fitting comes out of the tank.

So where can I find a replacement tank?

Any help would be appreciated.

Doug
I got my 'not available any more' black tank from Andy at Inland. It's fiberglass and much stronger than the old plastic one. It was pricey but worth it because I had no other choices. Andy will explain that he has them custom made hence the cost. You can build one yourself if you are handy. I tried to locate the thread/post of how one of the other forum members built his. I read it in the begining of this year so some one 'out there' can locate that thread.
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Old 09-28-2007, 09:20 AM   #16
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Quote:
Originally Posted by Blu_Hwy_Lady
Disclaimer: I have used the search function before I started this thread and could not find a problem just like mine.

Airylle has developed a mystery stench that happens only when there is "stuff" in the black tank. Here's the weird part: The smell is in the closets and the bathroom storge areas and it is definitely a sewer smell. We'd put about 6000 miles on her before we noticed it on the way back from the Casini Rally in May. ONe suggestion was that the seal around the toilet was worn out and the black water soup was sloshing up and penetrating the plywood subfloor. Lewster put in a new toilet seal when he passed thru New Mexico, so I know that got put in correctly. The blade in the toilet does not keep water in the bowl, but it has never kept water in the bowl and the stench is a fairly recent development.

Before our most recent trip I reamed the vents with a snake and there did seem to be some sort of obstruction in both vents that got pushed down and into the tank. I know that the snake got all the way to the tank because I put some water in the tank and when I pulled the snake out the end was wet. The vent pipes that go down thru the wardrobe closet and the closet in the bathroom seem to be in excellent repair with no cracks and the joints are tight. I filled the black tank with water, added a whole bunch of the "green stuff" that is supposed to digest the solids as well as some mild detergent. The idea was to let that sit for several days. Then, driving the trailer out our dirt road would churn anything loose and we'd dump before the trip.

I had high hopes that this would solve the problem, but noooooo.... We still have stench. It's not as bad as it was but it is still noticable after about a day. As soon as the tank is empty the smell goes away. I always put the recommended amount of "green stuff" in the tank at the start of a trip and use RV toilet paper. Any suggestions?

BTW, what is the opinion about RV toilet paper. Is it really necessary? The PO had a case of it that came with the trailer and we're down to the last roll. The expression "rougher than a cob" comes to mind when I think about buying more. I'd much rather use the nice Cottonelle Aloe & E we use at home but I don't want to cause even more problems than the one I already have.
Before you do anything go out and by a FLUSH KING and flush 7 or 8 times. You will be shocked how clogged your tank is.If that doesn't work take it to a dealer and save yourself a lot of dirty work unless you enjoy that sort of thing. Good Luck.
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Old 09-28-2007, 10:54 AM   #17
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What is a Flush King?

This weekend I'm going to try Andy's excellent suggestion of filling up the black tank and seeing if it leaks. I'm also up for trying the Flush King but I'd like to know what it is. A device? A type of cleaner. What am I looking for and where do I look?
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Old 09-28-2007, 12:46 PM   #18
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Quote:
Originally Posted by Blu_Hwy_Lady
I'm also up for trying the Flush King but I'd like to know what it is. A device? A type of cleaner. What am I looking for and where do I look?
Flush King available @ Camping World or probably most RV stores. Not sure it'll work with the vintage fittings though...I know it won't with our '64 but it will with our '56 when we are done with it. Just double check ~

Good luck Susan...sounds like fun - not!

Shari
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Old 10-01-2007, 02:17 PM   #19
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Stench Troubleshooting

Spent Sunday afternoon troubleshooting the black tank...Yuck.

The trailer was tilted slighty to the tank side. I've posted a couple of labeled pictures. The first one shows the fitting around the vent. It looks ok, and even examining it as well as I could by sticking my head as far into the compartment behind the toilet, there was no obvious cracks or separation. As Andy suggested I filled up the tank to the very brim.

As the second picture illustrates "water" --actually stinky water-- started to sort of seep up out of the joint. I measured the depth of the "water" in the tank with a yardstick and let it sit for several hours. When I came back there was not really any change in the depth in the tank, but there was more wetness on top of the tank. I could see down in the narrow slit between the back of the trailer and the tank and there was no water in the belly pan. I even rammed a piece of paper towel wrapped around the the yard stick down to the belly pan and moved it the lenght of the tank along the wall and it came up dry. I drained about 3 inches out of the tank, dried off the top and left it over night. This morning there was no water on the top of the tank. The water level in the tank was the same and again there was no wetness in the belly pan.

So, the question is, can I solve this problem by absolutely coating the area where the vent enters the tank with silicon? Yeah, yeah I know, the S-word. but the tank is heavy plastic.

Oh and InsideOut...you were so right about the need for the Flush King. When I drained what I thought was a clean tank.....jeez I created a HazMat Site next to the trailer. It was disgusting. I sprayed bleach in the tank and then flushed it for about 5 minutes with high pressure from the hose that I dragged into the trailer.
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Old 10-01-2007, 06:30 PM   #20
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What? Nobody liked my picures?

And I took so much time trying to get them right.
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Old 10-01-2007, 06:31 PM   #21
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But, did you figure our your problem?

I don't think silicone is a problem everywhere, just on aluminum.

Shari

P.S. Nice pics!
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Old 10-01-2007, 06:42 PM   #22
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Silicone is more a problem outside than in, but I'm not a fan of it either way. I've been using urethane sealants for the most part. A key point whan sealing anything is to clean the surfaces well. I use denatured alcohol as a final cleaning step.
Dave
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Old 10-01-2007, 07:26 PM   #23
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One more thing...

While resealing various things on the GT exterior, I removed the vent stack covers for inspection and found that one of the vent pipes had slipped down and the top of the pipe was under the roof skin. I secured it in the "up" position and sealed it all. I have also been having some faint odors - hopefully this will fix it.
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Old 10-02-2007, 12:17 PM   #24
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Any recommended urethane sealants?

As I mentioned in my assesment of the situation, there is no obvious separation in the sealent around around the junction of the vent into the tank. So, what I think I need is something that just really smears over what is already there to beef up the seal. I think what happens is that even half a cup of black tank fluid sloshing up while driving and the dribbling down the side of the tank could create a very stinky situation in short order.

So, here's my picture again; what's the best stuff to use?
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Old 10-03-2007, 12:39 AM   #25
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While I'm NOT an expert...

A urethane designed for windows would work good, also the gutter seal would be good. It can also be applied under moist conditions according to the info on the brand I used. (It wasn't Alcoa) I would still apply it under dry, clean conditions. I use denatured alcohol to clean prior to re-sealing anything.
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Old 03-06-2016, 10:43 PM   #26
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On my 2015 27fb I have the same strong sewer smell in the closet. (no smell under the closet) This happens when we travel down the hwy with sewer in the tanks. It is especially bad when the fantastic fans covers are open for cabin ventilation in hot weather. The dealer has looked at it twice and still have the problem.... may have to make the 1000 mile trek to Jackson Center. I don't think its from the grey tank... thinking it from the black tank. Next test is to drain just the grey tank and tow to check for smell. Any ideas?
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Old 03-07-2016, 09:12 AM   #27
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you could tryy adding lemon scent to one tank and pine to the other and see what scent you get on the road.
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