Rose from a napkin

From sewer pipes, two plugs and couplings, you can make a simple "home" version of a pneumatic jack that lifts the load with compressed air. The device is cheap, as well as simplicity of design and versatility in use. How to make a plastic jack We cut off the lid from the plastic plug for sewer pipes and drill a through hole in it, into which we install a regular air valve with a rubber gasket, and tighten it with a nut. Read More