Need some help with my hydrofarm thermostat.

[Mike41793]

I dont wanna jump in on the fight here but i have my probe on the heat tape in between the tub and heat tape and have had zero problems so far

[kitedemon]

I dont wanna jump in on the fight here but i have my probe on the heat tape in between the tub and heat tape and have had zero problems so far

I never suggested it didn't work. It just doesn't work in every situation. There are conditions where the swing with the room temp is quite large, too large IMO to be stress free 7-8º (hot spots that swing from 82-98º F) up and then down for the temp seems to me to be too large.

I just can't see a probe failing, a mechanical relay failing, and a second T-stat failing all at the same time. I just can't see all of that happening at the same moment. (aside from a power failure)