With the cost of coolants headed sky high, plugging refrigerant leaks is emerging as a top priority at many chains.
"No matter if it's a new or an old refrigerant, or if you're converting from one [coolant] to another, the No. 1 thing is to check for leaks," said John Seaberg, vice president of engineering and construction at Shaw's Supermarkets, East Bridgewater, Mass. "And after you do that, No. 2 is to check for leaks."
Steve Jenkins, director of engineering and store devel