closes: #58623 (Having two stationary plumbing tanks connected broke the map)
you can now map infinitely huge plumbing networks
Byond mistakes big chains of connecting ducts for an infinite loops, so when a lot of ducts (about 60) initialize at once and chain connect, byond kills the worldtick.
Plumbing already had an internal duct limit of about 800~ ducts, which has now finally been fixed aswell. The plumbing subsystem (SSfluids, I need to rename this shit) tells one duct to start connecting and uses the timer subsystem to call them one by one.
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