Originally Posted by landonshaw
Thank you. Have you seen this successfully used? Or, would it be better to put the time into taking the tank out and putting an internal sensor in it? Aloisius
Yes, the capacitive ones I have seen worked ok. You only need access to the side of the tank to stick the sensor to it. You do not need internal access.
For the float type sensors as well as pneumatic sensors (no power required) you only need top access to make a relatively small hole in the top of the tank. You do not have to remove the tank to install the sensor.
If you cannot get to the top of the tank then a stick-on sensor on the side is probably your best bet.