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Old 04-30-2014, 07:35 PM   #1
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Bad tank gage

Our black water tank gage is useless, never shows less than 2/3, sometimes even full, when just drained. I understand this is a common problem.
Is there anything that can be done to fix this?
I have used the flush feature several times, no effect.
The grey water gage works fine.
The trailer is 6 months old.
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Old 04-30-2014, 07:37 PM   #2
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Same here. I am thinking of warranty service. I have several small items that need looked at.
Bill
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Old 04-30-2014, 09:01 PM   #3
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The black gauges never work, they get tp and gunk on the sensors. If you hose the tank out they will read empty again. I am not sure why everyone gets so hung up on what their black tank reads. You will never fill the black tank up in a weekend, we can go almost 12 days before we are completely full and need to dump and our tank is only 25-30 gal. When it starts to splash out when you flush....it's full. Don't worry about the gauge.
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Old 04-30-2014, 09:08 PM   #4
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Yep, you're right, it is a very common problem with several suggestions on how to fix. I would recommend putting a solution of Dawn and Borax with a couple of bags of ice and then driving your rig (the more curves the better) several miles.

It worked for mine and now I always use the solution after dumping the tanks and before driving home. Hope that helps

There is also a thread on here about replacing the sensors with a new type that is less likely to fail.

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Old 04-30-2014, 10:26 PM   #5
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I recently discussed this with the RV dealer. He said to use more chemical. He also recommended a biodegradable product that uses bacterial enzymes to break down "stuff". I used it and it worked! My black tank was constantly reading full - mind you, I just got my HTT in Feb and have camped in it 4 times, just me.
This is the product -
http://www.amazon.com/dp/B0053T5BNY/...Y&linkCode=asn
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Old 05-01-2014, 11:10 AM   #6
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Just tried mine,all read empty. Don't know what is wrong!
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Old 05-01-2014, 11:46 AM   #7
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Black tank gauge= USELESS on most all RV's
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Old 05-01-2014, 12:47 PM   #8
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Quote:
Originally Posted by Mspooley View Post
I recently discussed this with the RV dealer. He said to use more chemical. He also recommended a biodegradable product that uses bacterial enzymes to break down "stuff". I used it and it worked! My black tank was constantly reading full - mind you, I just got my HTT in Feb and have camped in it 4 times, just me.
This is the product -
http://www.amazon.com/dp/B0053T5BNY/...Y&linkCode=asn
They tell you that because they make a lot of money on the chemicals.

We don't use the chemicals, we use dry laundry soap and tank flush on dumping. We camp ALOT (60 days last year).
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Old 05-01-2014, 01:47 PM   #9
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Quote:
Originally Posted by Seann45 View Post
Black tank gauge= USELESS on most all RV's

Yes! Like I said above all you need is a flashlight and 1 working eye and you will know when it is full. Seriously if you are questioning whether or not you can fill a black tank up in a weekend or even a week dump 5 gal pails into the toilet until the water is coming up into the toilet. 5 or 6 five gal pails is A LOT of pee...even for an average family of 4. I don't even check my black tank level unless I have been camping for at least a week. You know how full it is getting every time you flush. Really a none issue that most newbees seem to get quite anxious about in my opinion.
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Old 05-01-2014, 02:42 PM   #10
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Black tank gauges don't go bad - they're born that way.
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