20+ 2 Liter Soda Bottle. My version of the self watering 2 liter soda bottle planter. As your pet drinks and the water dips low enough so that the full bottle is no longer submerged, water will come flowing out to replace the displaced liquid.
Step by step directions.you can make them many different ways. Cap not included, sold separately (sb53276). There are 24 2l soda bottles that each hold an individual plant.
(2) optional you can also use wooden pencils, while not as long they will work, and then wrap tape around them for a neat look.
I drill only two 3/32″ holes in the lid of the soda bottle so the water will only come out at a slow trickle. The best part is that they're 100% free. My etsy shop best seller! What i finally stumbled upon almost by accident was 2 and 3 liter soda bottles.