schedule 40 pipe. Drill the connection holes into your 4-in. PVC fence post sections ... corrugated tubing through the top of the reservoir in the 1-1/4-in. hole. Leave about eight inches in the ...

This article was taken from the November 2014 issue of WIRED magazine. Be the first to read WIRED's articles in print before they're posted online, and get your hands on loads of additional content by ...