PVC pipe is commonly used as electrical conduit as well as irrigation piping. It's rigid and strong, which doesn't allow it to bend at all. Elbows and couplings make it possible to manipulate the path ...

Today in the submersibles department our hacker [Rupin Chheda] wrote in to tell us about their submarine project. This sub is made from a few lengths of PVC piping of various diameters. There is an ...