Have plenty of sandpaper on hand, because the waxes in PVC pipe will come off on the paper, causing it to lose roughness. Step 3: Clean the pipe. Wearing rubber gloves, dampen a clean rag with ...

[NightHawkInLight] a.k.a. [Ben] recently built an awesome high power air cannon out of PVC pipe. PVC air cannons are great, and everyone should build one of these at some point in their life ...