Originally Posted by gbaglo
Don't know. I've never come close to running out of water and I've never been confident in my visual check. I've checked the sensors visually and sprayed electrical contact cleaner on them. Didn't want to mess with them further than that.
After thinking a few minutes on it, it seems to me that Horst probes are designed to avoid creating phantom electrical connections, so they should help stop the tank from looking fuller than it really is. In your case the tank looks emptier than it really is, so that isn't something that I would expect Horst probes to help with.
Without foam or another type of protectant, that location looks susceptible to damage from road debris.
Sorry to hear about your probes not working. At least you are in good company given that a lot people seem to have trouble with probes.