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06-05-2016, 02:50 PM
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#1
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OldGuysRule
Join Date: Apr 2016
Location: New England
Posts: 33
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Darned black tank sensors!
Driving me crazy! I've got a 2015 PrimeTime 328res and the tank sensors are driving me nuts! I'm getting the phantom readings (as usual) and trying to get them to clear. I recently switched to the GEO method for tank maintenance. I'm up to about the fourth flush using softener, detergent and bleach. But the damn thing won't read any less than 3/4 full no matter what! I've flushed the tank using the built in black water flush. Any other ideas? I'm in for the season so driving around with ice cubes in the tank is out.
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06-05-2016, 03:00 PM
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#2
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Who Dares, Wins
Join Date: May 2012
Location: Chester County, PA
Posts: 7,063
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My gray tank always seemed good but my black has always sucked! I have found a good flush after dumping did the trick. For the tough ones (let it sit for a while while dumped) a filling of clean water and letting it soak for an hour or so did the trick... Until the next time I moved or filled the tank.
I did do the Horst Miracle Probes once.. They were OK but the black tank still sucked.. I just gave up and now just wait until I can see down the black hole it is getting filled.
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Pat, Jen, Heather & Sapphire, the head mouser.
2015 Chevy HD D-Max
2022 Impression 315MB
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06-05-2016, 03:06 PM
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#3
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Senior Member
Join Date: Sep 2012
Location: Virginia
Posts: 9,739
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Only have had the sensors in the current trailer, learned a long time ago about how long it takes us to fill the tanks don't worry about using the sensors.
__________________
2005 Dodge 3500 Cummins
2017 Wildwood Lodge 4092 BFL
1966 Mustang GT
1986 Mustang SVO
Lillie Spoiled Rotten Boxer Mix
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06-05-2016, 03:06 PM
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#4
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Georgia Rally Coordinator
Join Date: Jun 2015
Location: GA
Posts: 24,357
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I did the old Ice cub trick and it took care of problem for awhile just have to repeat. After emptying drop some ice down the stool drive to next location and dump should now read empty. Later RJD
__________________
2020 Shasta Phoenix SPF 27RKSS (sold)
2018 Dodge Ram 2500 6.4 3:73 gearing. Traded 2015 Chevy 2500 6.0, 4:10
Traded 2015 30WRLIKS V-Lite
Days camped 2019 62
Days camped 2020 49 days camped 2021-74 2022-40 days 2023 5 days
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06-05-2016, 03:08 PM
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#5
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Senior Member
Join Date: Jan 2015
Location: eastern NC
Posts: 1,783
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if your toilet drops straight into the black tank, you can try the Master Blaster, ..it shoots a jet of water,..... locate where your sensors are and point the spray in that direction, ...might be able to blast away anything that is preventing the sensors from reading correctly
http://www.amazon.com/Valterra-A01-0...s=rv+tank+wand
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06-05-2016, 03:11 PM
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#6
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Senior Member
Join Date: Aug 2012
Location: Indianapolis, IN
Posts: 336
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Quote:
Originally Posted by Oaklevel
Only have had the sensors in the current trailer, learned a long time ago about how long it takes us to fill the tanks don't worry about using the sensors.
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X2. Always at least at 2/3 no matter what. 10 gallons is a lot of crap especially for 2 people so I look at them occasionally out of curiosity but don't get alarmed when they show full.
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2013 Roo 183
Miles Driven/Nights Camped:
2012:1042/13 2013:2772/27
2014:2259/30 2015:1644/20
2016:1278/23 2017:2183/22
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06-05-2016, 03:18 PM
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#7
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Mod free 5er
Join Date: Mar 2008
Location: Concord, NC
Posts: 24,702
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Dump a gallon of Super Clean and about 5-10 gal of water in it and drive at least 50 miles and drain. Make sure you do some stop and go along with a bunch of curves to slosh it around. Crushed ice will do nothing.
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06-05-2016, 03:19 PM
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#8
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Senior Member
Join Date: Jan 2016
Location: Phoenix, Arizona
Posts: 306
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I have never had problems with sensors on several RV's. You just need to clean out better when you dump. I have used a wand like shown above but it has a bunch of small holes along the PVC pipe. You just stick it in the toilet and twist it around for a couple of minutes.
Don't rely on the wash out hose connection on the side of your RV.
__________________
2016 Forester 2401WS MBS
Life is short...eat the cookie
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06-05-2016, 03:22 PM
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#9
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Senior Member
Join Date: Oct 2015
Posts: 2,270
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06-05-2016, 03:22 PM
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#10
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Georgia Rally Coordinator
Join Date: Jun 2015
Location: GA
Posts: 24,357
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Quote:
Originally Posted by OldCoot
Dump a gallon of Super Clean and about 5-10 gal of water in it and drive at least 50 miles and drain. Make sure you do some stop and go along with a bunch of curves to slosh it around. Crushed ice will do nothing.
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Did not say crushed Ice I said Ice cubes and it does work. Later RJD
__________________
2020 Shasta Phoenix SPF 27RKSS (sold)
2018 Dodge Ram 2500 6.4 3:73 gearing. Traded 2015 Chevy 2500 6.0, 4:10
Traded 2015 30WRLIKS V-Lite
Days camped 2019 62
Days camped 2020 49 days camped 2021-74 2022-40 days 2023 5 days
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06-05-2016, 03:30 PM
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#11
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Senior Member
Join Date: Oct 2011
Location: Fort Worth
Posts: 664
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Did anyone read where he is permanent for the season?
__________________
Joe
2015 Wildwood 27RKSS (now sold)
2015 Silverado 2500HD Duramax
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06-05-2016, 03:30 PM
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#12
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Senior Member
Join Date: Dec 2011
Posts: 3,570
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It can be done, I've had working probes for over15 years using a tank spray wand. You must forget the myth that saturated TP can hang over 6" vertically between probes. It's impossible. A film can build up over the same surfaces and is conductive enough to read on the output LEDs.
Wands can be located at Walmart or Camping World. You must mark the wand at the handle to locate the nozzle blast when applying the spray. Very important to know where the four tank sensors are to concentrate the spray. If you can have someone tell you when lights start to go out it speeds the process. Works for me....
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06-05-2016, 03:56 PM
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#13
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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 aceinspp
Did not say crushed Ice I said Ice cubes and it does work. Later RJD
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Have a look at this video.
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06-05-2016, 03:56 PM
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#14
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Senior Member
Join Date: Oct 2014
Location: Southeast PA
Posts: 274
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I also use the down the toilet wand when the gauge gets stuck. The built in black tank flush does help get the tank cleaner, but does nothing for the sensor. The wand is the only way I've managed to get them working again.
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2013 F350 dually
2015 Palomino Puma 351THSS Premier Edition
2015 Nights camped 15
2016 Nights camped 5
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06-05-2016, 03:57 PM
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#15
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Senior Member
Join Date: Jan 2016
Location: Phoenix, Arizona
Posts: 306
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Quote:
Originally Posted by JoeNic
Did anyone read where he is permanent for the season?
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Why does that matter? Still needs to clean his sensors. IMO the best way is with a good steam of water and it should be rinsed out every time he flushes AND let the tank fill up pretty full before flushing. Just seems to work better.
YMMV
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2016 Forester 2401WS MBS
Life is short...eat the cookie
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06-05-2016, 04:04 PM
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#16
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Senior Member
Join Date: Oct 2011
Location: Fort Worth
Posts: 664
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I was referring to all the advice to use ice and drive around
__________________
Joe
2015 Wildwood 27RKSS (now sold)
2015 Silverado 2500HD Duramax
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06-05-2016, 04:34 PM
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#18
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Senior Member
Join Date: Apr 2015
Posts: 161
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Our Puma Unleashed black tank meter said 3/4 the day it was brand new. (last July)
Last weekend someone visiting flushed several tampons and stopped up the .... tank.
Garden hose IN the toilet, let the tank completely fill 4 times and completely dump 4 times and now the black tank gauge works as designed!!! We have a factory installed black tank flush that has never helped the sensor issue.
Might be worth a try!
IF your shower head is as close to the toilet as ours (and you have a lot of patience), one could fill the tank through the toilet with the shower head if they so desired.......... Being a toy hauler, I simply drug the hose in through the garage to do the deed.
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06-05-2016, 04:46 PM
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#19
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OldGuysRule
Join Date: Apr 2016
Location: New England
Posts: 33
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Thanks for all the advice. Seems one common theme is that the factory flush is useless. I use it every flush and flush only at full, but I think I'll have to get a wand.
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06-05-2016, 04:56 PM
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#20
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Georgia Rally Coordinator
Join Date: Jun 2015
Location: GA
Posts: 24,357
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Quote:
Originally Posted by OldCoot
Have a look at this video.
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Did not prove a hole lot. Trailer life even recommended to use and I have and all I can say it works have you tried? Later RJD
__________________
2020 Shasta Phoenix SPF 27RKSS (sold)
2018 Dodge Ram 2500 6.4 3:73 gearing. Traded 2015 Chevy 2500 6.0, 4:10
Traded 2015 30WRLIKS V-Lite
Days camped 2019 62
Days camped 2020 49 days camped 2021-74 2022-40 days 2023 5 days
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