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09-15-2022, 12:37 AM
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#1
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Member
Brand: Thor Motor Coach
State: Massachusetts
Posts: 51
THOR #23985
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Black tank sensors not working
2021 Axis.
Black tank sensor not working.
They are secure on the rank.
Any solutions?
Thanks.
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09-15-2022, 01:34 AM
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#2
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,396
THOR #7035
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Define "not working"
Search on the Forum for Sensor issues.
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Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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09-15-2022, 03:51 AM
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#3
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Senior Member
Brand: Redwood
Model: 36FB
State: Arizona
Posts: 1,766
THOR #3610
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Sounds like you have the normal set of tank sensors they've been installing forever, they work great for a tank full, or maybe 2, but then never change regardless of empty or full.
Your about to read all kinds of cures, magic potions, enzymes, bags of ice & 100 other this or that & yes 1 or 2 might work for a tank full, or 2, then back to the same "not working".
Don't drive yourself nuts over them, your toilet will have very distinctive burp or gurgle when you flush when the tank is nearing, learn this signal & forget the sensors.
Same with the grey tanks. The shower will start backing up, usually about the time you're in all lathered up, when that tank is full. The kitchen grey tank will usually be good til the others need dumped.
I've owned several rvs in 45+ years & none were the sensors more than pretty red lights on the monitor panel, the last 2 rvs I never ever looked at them.
__________________
Fulltimed 10+ years
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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09-15-2022, 04:18 AM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 2,728
THOR #11781
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What Tex said is the truth. We've had RVs since the 80s and none of the tank sensors were worth the time to check them. We know how long we can camp without dumping tanks and just enjoy ourselves.
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Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
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09-15-2022, 12:52 PM
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#5
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I Think We're Lost!
Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 22,195
THOR #8860
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__________________
"What: me worry?"
Good Sam Member 843599689
Current coach: Tiffin Wayfarer 24 BW
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09-15-2022, 06:02 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: 2022 Axis 24.1
State: Kansas
Posts: 823
THOR #24565
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I'm a newbie but did make an interesting observation.
Our 1st outing was just a couple nights. When we packed to head home we drained the Black tank *Completely* and then the gray tank completely.
Thought we'd try the San-T-Flush. Let it run several minutes then re-drained the black tank. WOW lots of yuck came out. Ran San-T-Flush a 2nd time letting the Black tank fill for several minutes. Drained the Black tank again...WOW lots of yuck came out. 3rd time we had clear water only.
What I learned is that I will try to never just completely drain my black tank once and head home. If possible we will wash it as many times as it takes to get 100% clear water.
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09-18-2022, 01:06 AM
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#7
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Member
Brand: Thor Motor Coach
State: Massachusetts
Posts: 51
THOR #23985
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Thanks for all the advice everyone.
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09-18-2022, 01:17 AM
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#8
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Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.6
State: New Mexico
Posts: 5,131
THOR #20220
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Quote:
Originally Posted by happy
I'm a newbie but did make an interesting observation.
Our 1st outing was just a couple nights. When we packed to head home we drained the Black tank *Completely* and then the gray tank completely.
Thought we'd try the San-T-Flush. Let it run several minutes then re-drained the black tank. WOW lots of yuck came out. Ran San-T-Flush a 2nd time letting the Black tank fill for several minutes. Drained the Black tank again...WOW lots of yuck came out. 3rd time we had clear water only.
What I learned is that I will try to never just completely drain my black tank once and head home. If possible we will wash it as many times as it takes to get 100% clear water.
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Exactly what we do. And we place Walmart tabs in with pine sol and/or venigar on the drive home
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09-18-2022, 02:55 AM
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#9
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Junior Member
Brand: Thor Motor Coach
Model: Challenger 37FH
State: Texas
Posts: 11
THOR #27788
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After I dump and flush my tanks, I pour a 4 gallon mixture of warm water, dawn, and Borax down each toilet. It sloshes and cleans on the way home. Our tanks read empty when I get there.
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09-18-2022, 03:33 AM
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#10
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Senior Member
Brand: Redwood
Model: 36FB
State: Arizona
Posts: 1,766
THOR #3610
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Quote:
Originally Posted by Scubawise
Exactly what we do. And we place Walmart tabs in with pine sol and/or venigar on the drive home
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Years ago tried Pine Sol & found that pine scented s##t is much worse than plain s##t. Can't possibly imagine what pickled s##t would smell like using vinegar.
A few gallons of water along with a good long squirt of dish soap or laundry soap, the cheap dollar store brands work as well as any, works very well to keep odors down & the black tank as clean as it will ever get.
__________________
Fulltimed 10+ years
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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09-18-2022, 04:25 AM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,886
THOR #14698
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Another black tank sensors don't work thread. I hate these threads cause I have to agree with the other 40+ years of RVng guys on how long our black tank sensors haven't worked and suddenly that makes me feel old...
__________________
2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
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09-18-2022, 04:31 AM
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#12
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Junior Member
Brand: Thor Motor Coach
Model: Challenger 37FH
State: Texas
Posts: 11
THOR #27788
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Quote:
Originally Posted by MJC62
Another black tank sensors don't work thread. I hate these threads cause I have to agree with the other 40+ years of RVng guys on how long our black tank sensors haven't worked and suddenly that makes me feel old...
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Well, they do have you categorized as a "Senior Member" 🤣
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