Quote Originally Posted by ballophile View Post
I often wondered about this. What if that mat or that run of Flexwatt goes bad that the probe is monitoring...isn't the thermostat going to try to raise the temp thus cooking the other snake or at least the other snake's mat?
You are correct. That is the risk of running two tanks on one probe. If the probe fails then both tanks would be affected by the malfunction instead of each running individually.