Trust but verify. Inspect there work or have some...

Trust but verify. Inspect there work or have some one who can! TLC needs to train and supervise their technicians. They serviced a swamp cooler for my landlord. Over tighten a brass fitting - it popped a few days latter. Upon further inspection they installed a zinc without an insulator base and hung the wire on a protrusion. I have known 14 yearolds who could handle brass fittings properly and knew how to install anodes correctly with proper grounding techniques. The technician could have read the packaging and asked for help with low voltage terminal to iron grounding techniques.