|Acid dissolve rate
|above 10 pressure
After spawning, a layer of BRCK appears around the PIPE. To set the direction of the PIPE, erase the BRCK around the end you want the particles to come out of. A series of lines will then appear showing the direction of flow, working from the end to the beginning. After the full pipe is calculated, you can remove the BRCK and replace the sides with another element.