Independant, Army & PANG veteran. 40 years in HVAC and Plb, retired in 2025. Married, love my wife and family, Son of legal immigrant. If you DM me I mute you
@omgsidewalks I suspect they are using geo thermal pump and dump systems. Cheaper than ground loops, and more practical than running miles of pipe in the ground. If they are, the water is not changed in any way. I installed them in a lot of homes over the years. The problem is corrosion