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Old 08-08-2015, 07:38 PM   #1
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Black tank

Anyone else have inconsistent indications on the tank levels? The last couple times I've dumped my black tank it never showed less than 1/3 afterwards. So today, before dumping I had the hose on the back flush on and then pulled the handle. Left the hose on for a moment and then dumped grey. It finally indicated empty after doing that. However, after flushing down the tank formula, the indicator now shows full. I never did like the light indicators, is there a better way?
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Old 08-08-2015, 07:46 PM   #2
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Tank indicators are prone to inaccurate readings just based on they way they are designed. If you rinsed the tank, it may return to normal readings once it dries out some. Your gut is the best indicator

Bob
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Old 08-08-2015, 09:52 PM   #3
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Our Black water tank has always shown full since new. Even had them look at it at the factory we just needed to get back on the road so we just live with it.
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Old 08-08-2015, 09:56 PM   #4
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Quote:
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Our Black water tank has always shown full since new. Even had them look at it at the factory we just needed to get back on the road so we just live with it.
Guess I've just been lucky that worked until now
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Old 08-08-2015, 10:04 PM   #5
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Black tank

Our 2015 Berkshire black tank indicator has never worked right. I see the same things the OP mentions. Fully drain the tank, it will show empty, flush the chems down and it shows 1/3 full. Sometimes works right, most times not.


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Old 08-09-2015, 07:42 AM   #6
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I've been told that the indicators could have buildup on them. Once I leave stone mountain I'm going to dump 3/4 fresh water in my black tank and add two bags of ice. Heard this may work to clear debris off sensors. See what happens.

-David
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Old 08-09-2015, 09:15 AM   #7
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The ice has been proven to not work. The fresh water and a good cleaner not bleach will be a good job.
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Old 08-09-2015, 09:20 AM   #8
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Quote:
Originally Posted by tkdavis View Post
Our 2015 Berkshire black tank indicator has never worked right. I see the same things the OP mentions. Fully drain the tank, it will show empty, flush the chems down and it shows 1/3 full. Sometimes works right, most times not.


Terry & Kim
Dallas, Texas
2015 Berkshire 38RB
2007 Jeep Wrangler JKU
Same situation here. Drain tank, shows empty. Flush chemicals and some water down shows 1/3 full. Use toilet once or twice and it shows full. Saw that Rid-X (the same company that makes chemicals for home septic tanks) has a holding tank chemical that is supposed to break everything down so am going to try that.
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Old 08-09-2015, 10:14 AM   #9
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I installed SEE LEVEL guage. Some others have also. They work great and give you a % full rather than the lights.
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Old 08-09-2015, 04:38 PM   #10
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I installed SEE LEVEL guage. Some others have also. They work great and give you a % full rather than the lights.
Is this the company you bought them from?

https://www.garnetinstruments.com/rv-shop/

How do you even get to the tanks, my coach underneath is completely closed up?
Did you have them installed?
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