The finished project. Notice the washers on the underside. The last step is to find a location away from the house to dig a hole and bury the digest...
Having a dog and little kids means there is a lot of dog poo to be picked up to keep the yard clean and the kids safe from illness and parasites. I decided to use an old HDPE barrel to build a dog waste digester. I'll place the dog poo in the digester and add bacteria from time to time to break the waste down. Much like a home's septic system.
Step 1: 55 gallon barrel
I started with an old 55 gallon HDPE barrel. This one used to have soy sauce in it. It was also used as a rain barrel and compost bin, so it's dirty inside, but it won't matter.