R-22 recovery drama: client wants to keep old unit

South Florida job, everything rusts here, and this homeowner insists on patching their 90s Carrier with R-22 even though EPA phased it out. Quoted $1200 for recovery and recharge but theyre balking at the price. Whats your go-to script for educating these dinosaurs?

Tell em straight: R-22 costs $100/lb now, switch to 410a or pay up.

I lost a client over this last month, but better than a callback nightmare.