I started w/the APSC out of college in 1980. My first project was at PS#4. The PS mgr. was in a panic that mineralization of the hot water lines at the new PLQ was going to require a total rework of the PLQ plumbing system. I was as green as they came. I went there and heard about the problem. I started to wonder, if the water source was the same, and it was, why didn't the temporary work camp have problems like this? Something did not add up. We went to the old camp, took apart some fittings and looked inside, no mineralization. Hmm... Turns out that the cook at the PLQ was jacking up the temperature of the dish washing machine in order to pass the Health Dept. requirements and this was causing the hot water heater to vent often. This was the source of the mineralization that concerned the Mgr. Case solved. I spent more time closing out the project's paperwork than I did solving the problem.