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Old 08-29-2016, 07:15 PM   #1
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Gray tank help

We own a 2016 26dbh and it seems like the gray tank smells worse than a fully loaded black tank. Others we camp with don't seem to have this same issue. Any suggestions what it could be or possibly how to fix?
I purchased the elbow with the spray nozzle to shoot up into the tank but it doesn't do much of anything for the gray...Works for black but I already have a tank flush for that!
Any help is appreciated
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Old 08-29-2016, 07:22 PM   #2
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I know that they sell drop in tablets and liquid as well to help break down the contents and deodorize such as those for black tanks.

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Old 08-29-2016, 07:24 PM   #3
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You sure the grey tank IS THE GREY TANK? Get a clear elbow and see if anything is going on.
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Old 08-29-2016, 07:27 PM   #4
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Yes I'm sure of that. I always use a clear elbow when dumping. I also do use the dissolving tablets...I'm just not sure why gray smells so bad. To be clear, not the same smell as black but almost a rotten smell.
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Old 08-29-2016, 07:30 PM   #5
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I had the same issue....when leaving camp I would completely drain the grey....that's the no no. Found that it ferments when empty. Now I add several gals. of water and no more smell.
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Old 08-29-2016, 07:41 PM   #6
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Thank you, I will do that from now on. How do you get the water in when you are at the dump station? Or do you just put a few gallons in when you get home?
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Old 08-29-2016, 08:08 PM   #7
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Turn the water pump on and add from fresh tank. Best to have it in there during travel to slosh around/rinse tank walls
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Old 08-29-2016, 08:11 PM   #8
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Good idea. Thanks again!
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Old 11-17-2016, 04:39 PM   #9
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Cascade Powdered Dishwasher Detergent

Had the same problem. A guy at a campground with 30 years of RV experience told me he puts Cascade detergent in his gray water tanks. Tried it and it did the trick.
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Old 11-21-2016, 11:24 AM   #10
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When we were doing our PDI on our travel trailer, the person that did our walk through said that they put a liquid in the black tank and then they will also put 2 oz in the sinks after the grey tank is empty and when they use it the next time it will help keep the grey tank smelling good.
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