Outdoor faucet frozen / limed / crusty / hard water buildup / help

[Ole Anderson]

Muriatic acid will dissolve calcified minerals. Just use with care, don't breathe the fumes.

[Tom M King]

While assembling a design for water heater through the wall drains in a rental house, I came across these. I thought that this might be a good solution for outside changeable hose bibs where you don't have to worry about freezing.

https://www.supplyhouse.com/Sioux-Ch...RoC5wQQAvD_BwE