Black Water Take Level Indicator

I made a toilet wand for use in our previous HTT that worked well. And even though the new TT has a tank rinser I still get a lot of "stuff" out of the tank using the wand.

The holding tank monitoring systems for most RVs has long been the bane of RVers. Winnebago now uses probes that are external to the tank. Our previous coach, 2008 Journey, had these sensor and worked perfectly, except for the stupid placement of the probes. (The 2/3 full probe of the 90-gallon fresh water tank was very close to the full sensor and the 1/3 full probe was at the 1/2 full point on the tank.)

Our current coach has the external sensors, also, but it is too soon to judge there longevity.

There are third party external sensors that one can install, but it is not always easy to get to the tanks.

Tech-Edge (iSeries)

Garnet Instruments (SeeLevel)

Tom

How do you clean your tank after dumping the black? I use a home a homemade wand down the toilet. Basically high pressures it clean. I noticed on several RVs I have owned a couple of things going on. Sometimes just condensation with a temp change will effect the indicators. At times when mine starts to look full a day later it is less full. I suspect as paper etc. breaks down it also shows errors on the indicators. I just try to make sure every time I dump it shows empty. I use the wand until it does. You need high pressure in the tank to clean it. The wands I have seen at Walmart and RV dealers don't seem to get the job done.

X2 never trust a tank sensor

The best way to deal with it is, accept the fact that tank sensors are not reliable or accurate.
You can try the Geo Method or ice cubes in the tank to clean the sensors.
I think most just learn to judge when the tanks need dumped.

You're not alone with a sensor problem. ;)