I think I mentioned in another thread that we've been in the process of changing out (as they break) brass angle valves and gate valves on baseball and softball fields to PVC ball valves because of all the breakage problems from cranking them down too tight. Here's another one for the books. Pictures show the conversion to ball valves for manual zones that water down a skinned infield for game prep. Picture #1: Round boxes with cast iron lids are the 2" right angle valves, two of which were broken. Round concrete lid has the 2" isolation gate valve. Stem was broken on it and the wedge was in closed position. The rectangle vault to the left contains automatic valves that are supplied from a different POC. Picture #2: I thought the concrete was only a slurry but OOPS... 6" thick. Picture #3: Out came the electric jack hammer. Picture #4: Original configuration of isolation gate valve and right angle valves.