2-20 gallon barrels
2-5/8″IDx1/2″ wall R3.2 25/50 fm (092362)
1 3/4 inch hole saw bit
1/8 inch drill bit
2- 3″ 7.6cm hinges
Power drill 2 drawer catches
2- 5/16×1 3/8×2 1/2 inch u-shaped screws with bolts
2- 10x32x2 inch screws with bolts
2-7/8″ 10d sinker
4- 1 1/4 inch PVC spacer/coupler
1- 1 inch x 5ft PVC pipe
2- 2x6x8 top choice boards
1/2 gallon rust oleum paint (optional) exterior weather resistant
Philip screw driver
Hand saw or skill saw
DOUBLE COMPOST BARRELS:
Using a hand saw or (saw of your choice) cut your barrels 3 inches from the top, this creates a lid for fill/empty access. Then cut your 5/8×1/2 inch wall 46 3/4 inches. Attach the wall strip to the barrel (make sure to position it correctly because once the adhesive connects it is impossible to re adjust it. Now attach the 3″ hinge right on top of the wall, drill your holes right through it. Attach the lid to the barrel, attach the drawer catch to the front of the lid play around with the bottom piece of the catch and adjust it so when hooked and snapped it pulls the lid tight to assure no spillage when spinning. Now you are ready to drill the holes for the 1 inch x 5ft PVC pipe. Using a 1 3/4 inch hole saw drill bit, drill your holes right in the center between the top and bottom of your barrel. This is for even spin when the tumbler is full of compost. If the holes are to close to the top, instead of spinning the barrel will just rock to and fro.
Now, unless you barrel is already dark, the next step is painting it a dark color. Dark colors draws heat and helps your compost material cook and break down quicker. All done with the com poster, now on to the spinner stand.
Cut your 2x6x8 inch boards in half 4ft each. Using your 1 3/4 inch hole saw bit, drill holes through 3 pieces of your 4 ft boards. ( save the 4th 4ft board for another project)
When you drill the holes be sure to leave plenty of room at the bottom for spinning. Cut your 2- 2x4x8 inch boards 47 3/4 inches, cut the 2 left over pieces 3 ft. These two 3 ft pieces will be your stabilizer legs. I have step by step building pictures that follow, it is easier to follow the pictures, this is a very easy project.
I got my barrels at the car detailing shop by my house, they were free. They use to contain armor all car wash solution. I had to take steps to make them food safe. First I rinsed them thoroughly with hot water until it ran clear. Next I filled them with hot water added 1/2 cup in each and let them soak for 48 hours. After this I rinsed again with hot water, and wash really good with a mild dish liquid. Again rinse thoroughly until water runs clear. Now fill this time using warm water and white distilled vinegar, let it sit over night. If the vinegar water solution is still clear by morning, the containers are food safe. But, if the water solution has a light brown color( like the color of really weak tea) their are still some wash solution and you should do the cleansing process again. Fortunately for me these washed out nicely and passed the food safe test.