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Re: Called in the Big Guns yesterday....

I Wrote DETER...not STOP, ALL RATS. If you know Rat behavior, they always take the path if least resistance and aren't crazy about swimming but will. I've worked in public Housing, Subways, The Brooklyn Waterfront..Know rat 🐀 behavior very well. Raised them for pet stores as a teen. I Had a Large Black & a Large Brown as pets..Ben & Socrates. They were my shoulder traveling buddies around the neighborhood to freak the girls out! Ha ha 😂 🤣 😆 Mad 🐕 Dog

I'm not sure rats are like steam and water in that way of taking the easiest route...rats will climb up a vertical stack and then squeeze through a toilet trap, as you said, no? So I think a house trap is no deterrence at all but I admit I've never been up to my elbows in a clogged one so I defer to your experience!

ethicalpaul

Re: T-87 mercury replacement

Hello @ChristineNoel1967,
I'd have showed him the door if he wanted to touch my T87F.

Maybe a Pro1® T771 Thermostat, Non-Programmable Thermostat, 44 to 90 deg F Control, R, C, W/Y, G Terminal, Import

The newer electronic thermostats just having a poor software excuse for a heat anticipator, as @EdTheHeaterMan stated they are basically only a switch, heat on, heat off. Something else may have been touched or changed.