How to Make a PVC Water / Air / Vacuum Pump!: In this project you'll learn how to make a customizable PVC hand pump that will create vacuum suction, pump water, or compress air. A pre-requisite to making the pump will be 2 homemade check valves. You can learn how to make these chea…

How to Make a PVC Water / Air / Vacuum Pump!: In this project you'll learn how to make a customizable PVC hand pump that will create vacuum suction, pump water, or compress air. A pre-requisite to making the pump will be 2 homemade check valves. You can learn how to make these chea…