Originally Posted by Renegade837
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.
The only idea I can help you with is come to the realization that the darn things just don't work as anticipated.
We are also seasonal, therefore what ever accuracy the probes did have will now be even less reliable.
What I found on ours is when the tanks get close to being full then the probes seem to kick in and show full and really, that's all I need to know anyway. Why do I care if it's half full.
If you really want the gauges to work maybe try these
RV Holding Tank Sensors - Get accurate grey and black holding tank monitor readings
i just think that whatever methods/tricks anyone tries, you won't ever get the manufactures probes to work probably.
Relax and learn the signs when the tanks are getting full.