Save Water—Make Your Own Rain Barrel
What is a rain barrel?
You can use paint to decorate your rain barrel or make it match your house!
A rain barrel is a way to catch and store rainwater as it flows from the roof. The water saved in rain barrels can be used for watering flowers, gardens and lawns all through the summer, even in times of drought. You can even wash your cars or windows with it!
How can I make a rain barrel?
You can buy a rain barrel at many home and garden supply stores or at sites on the Internet.
If you want to build one yourself, get an adult to help you and follow these instructions.
- 55 gallon polyethylene plastic barrel
- NOTE: Call your city’s engineering department and ask if they have free barrels. Plastic barrels or drums may also be available for free or low cost from car washes, bottling companies or other food businesses that use liquids.
- 10 foot length of 2 inch PVC pipe
- 2 inch PVC elbow
- 2 inch female threaded by 2 inch PVC elbow
- 2 inch male threaded by 2 inch pipe adapter tube silicone sealer/cement
- 1/2 inch female threaded silcock (aka outdoor faucet or hose bib)
- 1/2 inch threaded bushing
- 1/2 inch female threaded socket
- roll teflon tape
- 1-by-2 foot piece of old or new screen fabric
- 1 gallon plastic bucket, tub or flowerpot
- Cinder blocks
- Optional—paint to match your house color
- Jig saw
- Power drill with 3/4-inch spade bit
- Pipe wrench and pump pliers
- Screw driver
- Hack saw
- Tape measure
Step 1: Inflow
Cut a hole in the top of barrel to allow rainwater to enter the barrel and to access the inside of the barrel. The hole should be just large enough to snugly fit the 1-gallon plastic bucket, tub or flowerpot. The bucket will be used to support a screen to keep mosquitoes and debris out. Cut a 3/4-inch hole in the bucket.
Step 2: Spigot
Drill a 3/4-inch hole close to bottom of the 55 gallon barrel (Don't drill the hole too far down inside the barrel where you can't reach it from the access hole on top)
Put teflon tape on the 1/2-inch bushing and thread it into the silcock or hose bib. Now carefully thread the other end of bushing into the ¾ inch hole in bottom of barrel. It should fit snugly in the hole and cut threads in the plastic as you screw it in. Now unscrew it from the barrel, apply teflon tape to the threads of the bushing and apply silicone to the outside of the flange on the silcock. Screw it back into the hole and into a 1/2-inch socket on the inside of the barrel.
Step 3: Down Spout Modification
Prepare the area under the down spout where you want to install the rain barrel. Remove the old down spout and splash block and level the area where the barrel will sit. Place the cinder blocks so they are sloped slightly downward away from the house. Set the barrel on the blocks. With a hacksaw cut the down spout so it is just long enough to fit into the bucket on top of the rain barrel.
Step 4: Overflow
You should provide an overflow for water if the barrel fills to the top. With a jig saw, cut a hole in the side of the barrel large enough to fit the 2-inch male threaded by 2-inch pipe adapter. Place this fitting inside the barrel and thread it into the 2-inch female threaded by 2-inch PVC elbow on the outside of the barrel. Seal with silicone. Cut a length of 2-inch PVC pipe long enough to reach the ground. Attach a 2-inch PVC elbow to the bottom of this pipe and cut another length of 2-inch pipe to connect to a splash block.