The grey tank holds sink and shower water and the black tank holds the toilet waste.
Rv waste tank sensors.
Both tanks contain enough biological material to connect the sensors creating the inaccurate readings.
Before we get started on how to restore rv tank level monitors in your rv s gray tank let s briefly discuss what is happening to make them malfunction.
The inventor of the horst miracle probes now has an even better invention.
Why your gray tank sensors aren t working correctly.
The seelevel ii rv tank monitor series is available in many different configurations to meet most any motorhome fifth wheel or travel trailer tank configuration.
How it works.
When water inside the tank hits the metal nub it completes the electrical circuit and turns on the colored lights located in your rv monitoring panel.
Savvy rvers understand that solid waste shouldn t be allowed to go down your drain lines and end up in your gray tank.
The sensors are external and will not affect your readings by sewage buildup.
Each system provides tank level information using a percentage of full readout.
Rv holding tank sensors are little metal nubs that are screwed in the sidewall of the tank.
The sensors are placed at equal intervals in the black water tank like 1 3 2 3 and full.
Here s why these sensors work in your rv s holding tank.