Started a repair Friday at one of our high schools. Area was a swamp and discovered that three of four valves were leaking at their 2" x 1-1/2" reducing MA's. Good thing it wasn't leaking at the main line near or under the sidewalk as there are four pipes tightly buried in one trench. Also discovered that the QCV had been installed using Marlex 90s and was leaking through the threads. We had to pull off the repair for something else and will finish the job tomorrow.