I need to be alerted when the softener salt level is low. My plan is to set a moisture sensor on top of the salt after I fill the softener. When I refill the salt the next time, I take out the sensor, pour the salt and place the sensor back on top of the salt. If I don’t get to it in time, the sensor will eventually settle into the brine and trigger an aleart.
I have one of these already and it indicates it will float. It also recommends caulking the screws.
Will this moisture sensor handle the salt water? Will this idea work? Any other ideas?