Hello, I started for a new company this year and they don't do a lot of supermarket work but they do the largest supermarket in the city. The racks are quite old here and I find small leaks sometimes during repairs by finding oil and then I fix the leak. I spend the most time at this place at the moment and I want to start getting these leaks found and fixed but I dont have enough time to do the work thats currently needed never mind leak searching. I want to know what tools and techniques you supermarket guys use to find leaks and lets just say money is not a issue for purchasing of tools. Your help is greatly appreciated, Thanks