I am in the San Fernando Valley, outsider LA proper. I kept this unit operational for the better part of 45 years. Who recycles these and is there value besides the metal for scrap. This unit used lithium-bromide salt (80 lbs), not ammonia, 6 ft across, 6 high and 2 deep. A lot of metal, galvanized pipe and a cooling tower with 208v. fan motor and pump, which are new, as are the gas valve and thermocouple. The heat exchanger finally quit. Thanks for the opportunity to get on here, I hope this query bears fruit. I believe in recycling and lowered water use. It is good (and necessary) for the planet. It is good for us and our progeny...Steve.