Like most things in Space Station 13, the plumbing system is surprisingly deep. A skilled space plumber can set you up for a wild ride that'll send you racing through most of the station and spit you out from a mailbox. Now you can be that skilled plumber. 1) The building blocks There's a few pipe dispensers scattered around the station. The most easily accessible one can be found in disposals. Pipes come in multiple variations, 5 of which the dispensers will provide: Straight - Straight tube. Bent - Tube bent at a 90 degree angle. Junction - A three-way junction. The arrow indicates where items exit. Mail junction - Not available from the dispenser. A three-way junction that diverts objects with the matching mail tag (not customizable) into the side pipe. Visually distinguished by a red dot on the pipe. Bio filter junction - Not available from the dispenser. A three-way junction with a filter that diverts living humans into the side pipe. Visually distinguished by a red dot on the pipe. Y-junction - A three-way junction with the exit point in the middle. Mail and bio filter junctions of this type don't exist. Trunk - Entry and exit point for pipes. Disposal and mail chutes come pre-connected to these, and have to be placed first to connect to custom-build in-/outlet devices. Prison loaf processor - Not available from the dispenser, and also cannot be unwelded. See the recipe manager entry with the same name for details. Controlled pipe segments - Specialized equipment available to mechanics. 2) Managing your pipes Pipes come in four states: Free - Can be moved, rotated and flipped over by right-clicking on them. Wrenched - Wrenched to the floor. Immobile and inoperable. You can walk over them and rotate them. Welded - Welded to the floor. Immobile and can't be rotated. Fully operable. Broken - Welded to the floor. Inoperable. Must be welded at all ends to remove. You need three tools. A crowbar to remove the tiles covering the floor. This exposes existing pipes and lets you place new pipes. A wrench to fasten free pipes. A welding tool to make wrenched pipes operable or to loosen welded pipes. 3) Controlling the flow Take these tips to heart and you'll be a plumbing like a champion in no time. * T-ray scanners show you pipes hidden under floor tiles. * Always wrench the pipe in place before welding it. Poorly secured pipes will break the floor tile covering it and fall out of place. * Items will follow the pipeline from chute to exit point as long as every piece is connected, nothing is broken and there's no blockage. * Items entering a junction from the wrong end (the side with the exit arrow), will randomly go out one of the two other sides. * Fat people are poorly suited for pipes and can easily create a blockage. Blockages can be cleared by unwelding the blocked section. * Pipelines ending in a regular pipe will shoot things out in a straight line. Trunks eject items in random directions. * Combine with programmable electronics components from mechanics to make some truly wild rides.