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Old 10-28-2022, 06:15 PM   #1
Brand: Thor Motor Coach
Model: 2022 Tellaro 20L
State: Pennsylvania
Posts: 42
THOR #25231
Tellaro 20L Tank Sensors

I haven't been able to find a thread with this title, although I believe that lots of people have the problem.

Has anyone installed SeeLevel on a Tellaro?

My black tank (12 gal) reads 2/3 or Full with a few gallons in it. It's never even had toilet paper in it. Liquids only.

The gray tank has the same issue, and like the black tank, whether it chooses 2/3 or Full appears to be random.

I gave up on the fresh tank. I just look at the tank with a flashlight to find the level.

Propane seems to be not too bad. We started a 5-day trip with 7/8 showing. After 4 nights of running the Truma at 60F, it still showed 1/2.

I went to Tractor Supply, and they put a little over 2 gallons of propane in. And they charge by the gallon. No minimum and no flat fee!

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Old 12-07-2022, 06:20 AM   #2
Brand: Thor Motor Coach
State: Florida
Posts: 39
THOR #28560
I have the same rig, same issue, looking at Seelevel just adding it and run it at the same time as the factory crap.
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Old 12-07-2022, 11:51 AM   #3
Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,438
THOR #17765
Whether the sensors are in a 12 gallon tank or a 50 gallon tank, they’re never accurate. In mine 2/3 might mean 14 gals or 26 gals. Freshwater might say 1/3. Add 2 gallons and suddenly you’re at 2/3. If we’re staying without a sewer hookup we usually get 5 to 6 days. Use the bathhouse.
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Old 12-07-2022, 01:13 PM   #4
Senior Member
Brand: Thor Motor Coach
State: Wisconsin
Posts: 222
THOR #27874
I have yet to rely on tank sensors in either of our rigs, other than propane - it seems to work fairly well.

I think we just got used to how we use facilities/water. I dump when we get to a campground, close off valves and pay attention to use over a day, 2 days...haven't overflowed yet (well that's not true, did overflow the black flush on the class A...valve closes, distracted by neighbor - i now know that the vent tubes on the roof work as sprinklers as well as vent pipes).

While kinda of a cool device, I'd take the $200 some odd $$ you are going to pay for the SeeLevel and get a second solar panel or more batteries.

The other option is a DIY setup. There are 3 sensor devices on amazon that might do the trick, that are pretty cheap. Just have to wire the contact signals into the BMPro master node, similarly to the existing sensors.
Ron and Kitchy with Scottie our tri-color Sheltie
2014 Fleetwood Bounder 35k, 2019 Jeep Cherokee Limited toad
2023 Thor Tellaro 20L 200Amp Reliable -no generator
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