tgstation/-tg-station — pull request #4550 by Ikarrus (2014-08-23 23:41:48+00:00)
Title: [MAP] Removes manual valves

As most practical uses of manual valves are considered metagaming and gets players banned, manual valves are being removed.

-Manual valves will no longer be producible.
-Manual valves existing on the map will be replaced with digital valves.