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Old 03-26-2012, 05:28 PM   #1
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Black Tank Cleaning

My new to me campers black tank has a very strong (BAD) odor when the tank is empty and half full. I have been searching posts on how to clean out the tanks and most solutions (i.e. ice in the tanks and travel down the road) do not apply to me because my trailer is at a seasonal spot and is never towed. I tried filling the tank and letting it sit all week with this http://kronen1.com/performance.phpchemical my RV dealer recommended. It did not help really at all. Doe anyone have an idea what I can use to soak in the tank to clean it. I am sure it is sludge built up in the tank from the previous owners.
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Old 03-26-2012, 06:02 PM   #2
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Google Unique RV-Digest It - I have found it to be the best product on the market. No harsh chemicals.
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Old 03-26-2012, 06:08 PM   #3
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Yes, We have helped others with the seasonal camper clogged black tank problem using the RV-Digest-It from www.rv-digest-it.com

Follow the directions for the "24 hours" soak.
One quart in the tank and wait 24 hours.
Then dump and flush with a toilet wand.

Repeat after 72 hours.

The flush is easier to do if you have a clear elbow on your dump mast.

Plan on doing this at least twice; so think ahead when you order from them. You will be using it occasionally from now on to keep that squeaky clean tank... well... squeaky clean.
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Old 03-26-2012, 06:15 PM   #4
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Quote:
Originally Posted by herk7769 View Post
Yes, We have helped others with the seasonal camper clogged black tank problem using the RV-Digest-It from www.rv-digest-it.com

Follow the directions for the "24 hours" soak.
One quart in the tank and wait 24 hours.
Then dump and flush with a toilet wand.

Repeat after 72 hours.

The flush is easier to do if you have a clear elbow on your dump mast.

Plan on doing this at least twice; so think ahead when you order from them. You will be using it occasionally from now on to keep that squeaky clean tank... well... squeaky clean.
As Herk said look ahead the last time I ordered if you bought 4 quarts the shipping was free - don't know if that is still their policy or not.
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Old 03-26-2012, 06:23 PM   #5
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Once you get it clean I would highly recomend a Tornado tank rinser to help keep it clean.
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Old 03-26-2012, 06:32 PM   #6
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Might be a good idea to make sure that the vent is actually "venting" as well - might be plugged at the roof.

...VTX-Al
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Old 03-26-2012, 06:34 PM   #7
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Quote:
Originally Posted by herk7769
Yes, We have helped others with the seasonal camper clogged black tank problem using the RV-Digest-It from www.rv-digest-it.com

Follow the directions for the "24 hours" soak.
One quart in the tank and wait 24 hours.
Then dump and flush with a toilet wand.

Repeat after 72 hours.

The flush is easier to do if you have a clear elbow on your dump mast.

Plan on doing this at least twice; so think ahead when you order from them. You will be using it occasionally from now on to keep that squeaky clean tank... well... squeaky clean.
I will give RV-Digest-It a try. Sounds like you guys have had good luck with it. After reading the info on their website, it looks like the same type of product Kronin is using "good bacteria".
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Old 03-26-2012, 07:20 PM   #8
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Quote:
Originally Posted by VTX Al View Post
Might be a good idea to make sure that the vent is actually "venting" as well - might be plugged at the roof.

...VTX-Al
X2! Last year I had Paper Wasps make a nest in my vent pipe...

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Old 03-28-2012, 06:42 PM   #9
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I truly feel your pain,,,we too had a horrible time getting the smell out of our tank,,we tried every and I mean EVERY thing that anyone suggested to us, to no avail...we ended up pulling it off the site and bringing it home for further inspection..we came to find out that it was just a mess inside..we rinsed and rinsed and even ended up using a pressure washer (with just slight pressure) not full strength... after many times flushing the unit, we finally were able to get a clean tank..I will now use the geo method and the rv digest...everyone on the site was so helpful but I it is just so hard to get it flushed properly when you are on a permanent site, and we didnt have sewage hook up which complicated things more...I hope that you can get it taken care..
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Old 05-03-2012, 08:29 PM   #10
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So I followed your guys procedure with RV-Digest It. The smell went away temporarily but after two times using the camper, it's back. I got to looking at the tank after I drained it and there was visible water in the tank looking down the toilet. After looking under the camper, it looks like the tank is sagging...is this normal?
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