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04-20-2016, 07:58 AM
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#1
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Junior Member
Join Date: May 2015
Location: Palm Coast, FL
Posts: 6
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Black tank level issue
Hi all! We are enjoying our 2015 248RBS freedom express and use it quite a bit. The last few trips I've niticed that although i empty the tank completely, the black tank will still read 2/3 full. Any ideas on fixing the sensor or anything? Thanks, Peter in Florida
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the BugCart
2015 Coachmen FE 248rbs, 2011 Ram 1500
Cannondale mountain bikes
Kayaks
Beautiful wife
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04-20-2016, 08:08 AM
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#2
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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Quote:
Originally Posted by peterbugnet
Hi all! We are enjoying our 2015 248RBS freedom express and use it quite a bit. The last few trips I've niticed that although i empty the tank completely, the black tank will still read 2/3 full. Any ideas on fixing the sensor or anything? Thanks, Peter in Florida
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Do a Search in the box at top of this Page. Days/Weeks of reading on "Sensors"! Youroo!!
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04-20-2016, 04:35 PM
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#3
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Senior Member
Join Date: Jan 2016
Location: Benbrook, Tx
Posts: 508
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At the moment, mine are reading correctly. I don't expect it to last too much longer. It's only been used once so far.
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Dwayne and Susan
Jiro and Phoebe-4 legged family members
Mike and Dana - Traveling buddies
2016 Ford F350 XLT 6.7 Powerstroke DRW 4X4
2016 Brookstone 395RL
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04-20-2016, 05:22 PM
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#4
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Senior Member
Join Date: Sep 2010
Posts: 2,219
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My sensors never worked from day 1 and haven't looked them in years. When there is water coming up in the shower the grey is full. I can hear a significant change in the noise made when flushing the toilet when the black is getting close.
2010 F250 5.4L 3.73
2011 Flagstaff 831FKBSS
Equal-i-zer 4pt 12K
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2011 Flagstaff 831FKBSS
2010 F250 4X4 5.4L 3.73 LS
EQUALIZER E4 1200/12000
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04-20-2016, 05:28 PM
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#5
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Senior Member
Join Date: Oct 2015
Posts: 2,404
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Quote:
Originally Posted by peterbugnet
Hi all! We are enjoying our 2015 248RBS freedom express and use it quite a bit. The last few trips I've niticed that although i empty the tank completely, the black tank will still read 2/3 full. Any ideas on fixing the sensor or anything? Thanks, Peter in Florida
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Read other threads as suggested. The short answer is that your sensors (or sensor areas) are most likely covered with TP or waste due to inadequate flushing out of the black water tank. Just dumping it out won't "do" it, and most likely insufficient water was used when flushing the toilet during use. That tank needs lots of liquid.
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2016 FR Forester 2401R
Towing 2014 Honda CR-V
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04-20-2016, 05:58 PM
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#6
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Senior Member
Join Date: May 2012
Location: Charlotte, MI
Posts: 226
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We have tried a lot of "fixes", but they mostly fail. The only thing that works consistently is a black tank flush, which we have on this trailer.
If you don't have one, they can be installed, and it is usually not that difficult or expensive.
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2011 Brookstone 354TS
2013 F350 SC 6.7 DRW
Swivelwheel 58DW
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04-21-2016, 12:13 PM
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#7
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Junior Member
Join Date: May 2015
Location: Palm Coast, FL
Posts: 6
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Thanks all!
__________________
the BugCart
2015 Coachmen FE 248rbs, 2011 Ram 1500
Cannondale mountain bikes
Kayaks
Beautiful wife
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04-21-2016, 01:15 PM
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#8
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Senior Member
Join Date: Dec 2011
Location: Orlando, FL
Posts: 306
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Inaccurate sensor readings
Best thing to do is get your hands on some poop eating, sensor cleaning, nano bots. However, since they cost millions of dollars and are only available from the Department of Defense, I would probably go with plan "B"...which is to use the "GEO method". Information about it is available through this site or on the web. Good luck!
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04-21-2016, 05:19 PM
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#9
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Member
Join Date: Feb 2016
Posts: 75
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I've had 5 class A MHs. None have had accurate readings all the times. I haven't had the newest one long enough to be able to tell. We only took it once for 5 days, and didn't have sewer hook up. Some days it showed 1/2, the next check was full, next check was 1/4 and on and on.
The MH I had before that was not accurate, until I used a liquid cleaner a couple of times. Then I always made sure I had plenty of water, and had around 3/4 full before I dumped, and flushed the tank. That seemed to help a lot.
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04-21-2016, 05:45 PM
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#10
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Quote:
Originally Posted by slipf18
Best thing to do is get your hands on some poop eating, sensor cleaning, nano bots. However, since they cost millions of dollars and are only available from the Department of Defense, I would probably go with plan "B"...which is to use the "GEO method". Information about it is available through this site or on the web. Good luck!
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On your next trip, empty the black tank, dump a gallon of SuperClean in the toilet and about 5 gal of water and drive home. When you get home, finish filling with clean water and let set for at least 24 hrs and then drain. Would also help to drive around with a full tank before emptying.
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04-21-2016, 06:50 PM
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#11
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Senior Member
Join Date: Sep 2012
Posts: 361
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5 - 10 pounds of ice cubes and a good black tank cleaner just before a road trip should help clean the sensors.
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DJsFolly
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