A pre-requisite to making the pump will be 2 homemade check valves. You can learn how to make these cheap PVC check valves here!
Step 2: What You'll Need
I thought it might be good to build a simple pump, mainly for learning purposes, and I wanted to do it with low cost materials.
I've wanted to build a PVC water pump for awhile, but the check valves were around $10.00 each. That seemed a little steep for a PVC build, so I made my own, which you can see in a different project.
I was inspired on the pump piston and chamber by a picture I saw on a google image search by someone who used the 1-1/4" and 1" sizes of tubes, and he mentioned he cut the grooves for the O-rings on a table saw. That was a new idea to me and gave me the inspiration to put this together.
The materials I used are outlined in detail in the picture.