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05-14-2012, 05:55 PM
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#1
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Member
Join Date: Jan 2011
Location: Denver
Posts: 47
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Black tank always reads 2/3 full
My black tank reads 2/3 when empty. I'm assuming that it may be the sensor? We've really have put up with it for 2 years now. You all think I have a bad sensor? Does anyone make a universal sensor or should I try to get it from the dealer? If I replace the sensor do they typicaly screw out of the black tank or would I just have to disconnect it and re-drill a new hole in the same area for a replacemnt sensor?
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05-14-2012, 06:03 PM
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#2
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Site Team
Join Date: Nov 2010
Location: Virginia`s Eastern Shore
Posts: 17,091
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These black tank sensors are pretty much worthless IMO. "Stuff" gets on the sensor and you get false readings, and this is a constant battle even if you clean the tank and get them working again. Mine is reading 2/3 full right now as well with an empty tank. There are more high end level indicators which are available for purchase, some on this forum have done this mod..
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2017 Coachmen Catalina 283RKS
2018 Ford F250 Super Duty 6.2l CCSB
2010 Jayflight 28BHS (sold)
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05-14-2012, 06:43 PM
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#3
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Senior Member
Join Date: Sep 2010
Location: Fraser Valley British Columbia
Posts: 767
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If you have the chance fill your black tank half full of water add a couple of those solid dishwasher tablets and drive to your camping area and dump when you get there or along the way, that may help clean it
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2010 Jayco Eagle Superlite 256 RKS
2008 Dodge Ram 3500 Cummins
66 nights in 2016
61 nights in 2015
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05-14-2012, 07:35 PM
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#4
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Member
Join Date: May 2011
Location: NW Oklahoma
Posts: 56
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You may also try sending a couple bags of ice into the black tank, after filling it with water. Then tow the camper a ways. The ice and water will kind of "scrub" stuff off of the sensor. Has worked for me before, but sooner or later the sensor will "stick" again.
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2014 Jayco Eagle Touring Edition 28.5BHDS 5th Whl
1986 Jayco 1008dd Popup
1984 GMC C2500 Crew Cab 454 4spd
2018 Jeep Wrangler JK
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05-14-2012, 08:12 PM
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#5
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Senior Member
Join Date: Feb 2011
Location: Germantown, TN
Posts: 4,923
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My suggestion - use the eyeball method. When you flush look down the hole and see how full it is. They make a sensor that attached to the outside of the tank, but I just can't get myself to pay that much for it.
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05-14-2012, 08:49 PM
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#6
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Senior Member
Join Date: Mar 2012
Location: Friendswood, TX.
Posts: 163
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Quote:
Originally Posted by Crabman
These black tank sensors are pretty much worthless IMO. "Stuff" gets on the sensor and you get false readings, and this is a constant battle even if you clean the tank and get them working again. Mine is reading 2/3 full right now as well with an empty tank. There are more high end level indicators which are available for purchase, some on this forum have done this mod..
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Yours reads 2/3 full right now empty, but when it's full does it read full or just always at 2/3?
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2007 Toyota Tundra Crewmax LTD 4x4 5.7l w/4.3r 381 hp and 401 lb-ft of torque
2012 Jayco 32BHDS
Me, Wife and 3 kiddos
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05-14-2012, 09:35 PM
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#7
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Member
Join Date: Jan 2011
Location: Denver
Posts: 47
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How about just pulling the sensor out and sticking my pinkie finger in there to tell.. Yep it's full!
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05-14-2012, 09:37 PM
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#8
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Member
Join Date: Jan 2011
Location: Denver
Posts: 47
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Anyone make an aftermarket sensor?
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05-14-2012, 09:40 PM
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#9
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Senior Member
Join Date: Sep 2010
Location: Fraser Valley British Columbia
Posts: 767
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Quote:
Originally Posted by wb2nco
Anyone make an aftermarket sensor?
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Pinkies are free though!!
__________________
2010 Jayco Eagle Superlite 256 RKS
2008 Dodge Ram 3500 Cummins
66 nights in 2016
61 nights in 2015
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05-14-2012, 09:43 PM
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#10
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Member
Join Date: Jan 2011
Location: Denver
Posts: 47
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...and apparently more accurate!
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05-14-2012, 09:45 PM
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#11
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Senior Member
Join Date: Oct 2011
Location: The Dalles,OR
Posts: 133
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can try these they make a set for grey and black tanks http://www.miracleprobes.com/
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05-14-2012, 09:49 PM
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#12
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Member
Join Date: Jan 2011
Location: Denver
Posts: 47
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Awesome! There are in my neck of the woods too! Thanks!
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05-15-2012, 06:25 AM
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#13
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Senior Member
Join Date: Sep 2011
Location: Greater Cleveland Area
Posts: 113
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Has anyone actually used the Horst probes, and if so would you recommend?
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2018 28BHS
2019 RAM 1500
Equal-i-zer
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05-15-2012, 07:03 AM
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#14
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Junior Member
Join Date: Jan 2012
Location: Central Shenandoah Valley of Virginia
Posts: 11
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I thought with the tank wash system mine might read better...wrong...tank is empty, gauge reads 2/3. When it gets full it reads full but most times even after using the tank wash it still reads 2/3... we had the same problem on our Gulfstream...just learn to live with it.
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Ford F250, V10
Jayco 320RLDS
Spent 165 nights camping in 2011
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05-15-2012, 07:32 AM
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#15
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Member
Join Date: Oct 2011
Location: Clermont, Florida
Posts: 67
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Camco makes a wand with a spinning head that attaches to a garden hose it creates a high pressure and blows all the poop and paper off the walls with a spinning brass tip, best $20-25 dollars you can spend, works like a charm!!!
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05-15-2012, 10:36 AM
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#16
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Site Team
Join Date: Nov 2010
Location: Virginia`s Eastern Shore
Posts: 17,091
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Quote:
Originally Posted by Preston
Yours reads 2/3 full right now empty, but when it's full does it read full or just always at 2/3?
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The readings are all over the place. Sometimes it works normally, but for the most part it is unreliable at best. Its been quite some time since I had the tank completely full, so I`m not sure if it would read full or not.
__________________
2017 Coachmen Catalina 283RKS
2018 Ford F250 Super Duty 6.2l CCSB
2010 Jayflight 28BHS (sold)
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05-15-2012, 11:31 AM
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#17
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Member
Join Date: Apr 2012
Location: Waterloo, Iowa
Posts: 34
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I was looking at the setup and mind you I'm new to campers with ammenities as i came from a popup with nothing in it. Why can't they design these so that the grey drains through black and act as a wash out?
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2018 White Hawk 31BH
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05-15-2012, 07:25 PM
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#18
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Member
Join Date: Jan 2011
Location: Denver
Posts: 47
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Another thought.. Can you just remove the oem sensors from the tank and clean them off?
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05-15-2012, 07:32 PM
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#19
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Senior Member
Join Date: Aug 2009
Location: Dallas, Texas
Posts: 788
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My trailer is over 9 years old and the black tank sensors still work great. I have a No-Fuss-Flush black tank rinse system. After every dump, I add about 5 oz of Blue Dawn Ultra dish washing liquid. I only dump the black tank when it is over 2/3 full, even if that means leaving "stuff" in the tank for a trip or two. If possible, I dump the tank upon arrival at a park. There is never a line at the dump station on Friday.
The grey tank sensor is unreliable on my trailer. I attribute that to no flush system. Next trailer I'll have a grey tank rinse system installed in addition to the black tank rinse.
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Russell
'13 Excel Winslow 34IKE
'12 GMC Sierra 3500HD
Previous RV's: '03 MobileScout Titan 29DBS; '01 Sunnybrook Lite 2708 SLE; '99 Coleman Utah
Previous TV's: '02 Chevy Suburban 2500 8.1 4.10; '99 Chevy Express 1500 5.7
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05-15-2012, 10:06 PM
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#20
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Senior Member
Join Date: Nov 2009
Location: Orange County, N.Y.
Posts: 675
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I have had 3 TT's so far. My current one I bought nes and have a black tank flush installed, and even using the black tank flush all the time my sensors read incorrectly.
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Joe, Joyce , 4 Kids and 5 Crazy Dogs.
2017 Chevy 3500 HD Silverado LT Dually 4x4 .
2010 Jayco Jay Flight G-2 32 BHDS[IMG]https://www.jaycoowners.com/forums/imagesng
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