Airlift Pump

thingiverse

It gradually lifts water using compressed air. It uses standard 1/4" aquarium tubing and pumps and is small+streamlined enough to fit through a pop bottle neck. It can lift water over five feet, using the cheapest air pump petsmart had... I now use several of these for watering plants on a timer. Thank you gswatts for the inspiration! Hose barbs modified from the ones by cgipeart for his water rocket. Sources now available at http://burningsmell.org/3d/airlift/ Instructions It prints in several parts, the main body and the hose barbs. Print in ABS, glue together with ABS pipe cement. There are two fitting on top. The straight-through pipe is the outlet, which belches air and water upwards. The one that stops halfway is the air inlet. There's a small connection between it and the straight pipe to let air into the stream. The fitting on the bottom is the inlet. You should add a length of tubing to it -- it stops air from bubbling out of the bottom too easily if the top tube becomes "full". Somewhere between half a foot to a foot of tubing seems to work for me. Loop it back up to the clip on the side.