DIY: Waste Digester


Update April 19, 2011: I’ve recently gotten a few questions about this post, so I thought I’d repost it for those of you who may have missed it.  This is such a great idea for an Earth Day project!  Let me know if you make one yourself.

Last week I wrote about an environmentally friendly way to dispose of your dog’s poop using a waste digester—the Doggie Dooley or the Staywell Eco Clean.  They work like a miniature septic tank.  They can also cost a pretty penny and depending on how many dogs you have, may not be able to handle all your poop problems.

Happily you can make your own pet waste digester for dirt cheap.  You’ll need:

  • a large plastic garbage can with a lid hat fits tightly
  • a drill to make holes in the side of the can
  • something to cut the bottom out of the can
  • a shovel
  • a hole dug with that shovel
  • gravel or small rocks
  • septic tank enzyme available at hardware stores (Septonic, Septo-Bac, Roebic Septic Treatment, Drain Out, Rid-X)

Don’t locate your waste digester anywhere near edible plants.  And don’t put one of these too close to water, like a river bank, or anywhere where the water table is high. Waste digesters won’t work properly in very clayey soil and digestive activity stops below 40°F, but picks up again when the weather warms up.  If you live in a cool area, try to locate your digester in a sunnier part of your yard.  Also, too much chlorine in the water you add to the digester may slow digestive activity.

Check out the detailed slide show for a DIY waste digester and make your own.

The video tells you how it works and how to maintain you DIY Doggie Dooley.

Powerloo & Wasteaway—Outdoor Poop Flushers


The Powerloo is supposed to be an environmentally friendly way to dispose of dog poop.  It’s an outdoor toilet that’s connected to your sewer and water lines for flushing poop you’ve scooped from your yard or poop you pick up on your walks in biodegradable bags. It comes in 6 different colors and will be $1000.  Kind of pricey, hunh?

I’m not sure how the amount of water used balances out against keeping plastic bags out of landfills.


There’s another flusher thingy called The Wasteaway. It attaches at the clean-out pipe for your sewer line and uses a mounted garden hose to flush the poop.  The opening looks kind of small—that could get really gross really quickly if your aim is bad.  At least you can control how much water is used.  The Wasteaway isn’t as pretty as the Powerloo, but it’s a lot cheaper at $175.