That sucks. $1K for a drippy faucet....:BangHead:
Did you add a shutoff valve? I would have done that while waiting for plumber... But other than heater maintenance service, I only recall a plumber here once in 27 years. Had a prob with the water to heater while I was at work and told wife to call one. Glad he got it done, but replaced some copper with PVC. No other PVC water lines in my house...:wtf:
Sell the cartridge on ebay