I've sealed most gaps around my place, but still had some issues last winter... Wondering if anyone's tried ultrasonic repellents—do they actually hel...

Had a similar issue at my place, though it wasn't pipes corroding. Kept getting weak pressure in the kitchen sink, tried all the usual fixes—cleaning ...

I've tried the ultrasonic route myself, and honestly, I'm still skeptical. Maybe it's just my yard, but even mounted high up, they didn't seem to make...