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Step 8 - Rain Barrel Construction

Home made rain barrels are relatively easy to construct from 55-gallon drums and a few other basic components.


Simple rain barrel design.
(Source: Maryland DNR Green Building Program)

 

The following is a simple construction sequence:

Supplies can be obtained from your local hardware store. [Materials List]

 

1. Drill a hole 1 to 1-1/2” from the bottom of the barrel. Use 3/4” drill bit.
 
2. Screw the 1/2" PVC male adapter into the hole. Unscrew the adapter and then wrap the threads with plumber’s goop. Screw the adapter back into the hole and let it dry. Attach the garden hose to the adapter.
 
3. Cut overflow fitting near the top of the barrel. Use 1-5/8” hole saw. Place the 1-1/4” male threaded coupling through the hole. It is helpful to wrap the threads with waterproof sealant. Screw the 1-1/4” female barbed fitting from the outside of the barrel onto the male threaded coupling. Attach the drain hose.
 
4. Drill a 1/2” pilot hole in the center on top of the barrel. Cut around the 1/2” hole using the router, jig or coping saw. Cut a hole the same diameter as the atrium grate (i.e. 4”). Do not make the hole too big as the grate should fit securely to filter large debris. Attach a mesh screen to the inside of the grate to filter small, fine debris and prevent mosquitoes from breeding. Place the atrium grate into the hole with the basket facing down.
 
5. Cut a notch at the top of the barrel rim. The notch will hold the hose when not in use. The notch will provide a place to hold the 3/4" x 1/2" PVC male adapter on the end of the watering hose when it is not in use. Use 1/2” drill bit.
 
6. Place the barrel on concrete blocks to ensure that water will flow from the hose. It will take 4 concrete blocks to get the barrel approximately 12-16 in. off the ground.
 
7. Cut the existing downspout with a hack saw. Connect the newly cut end piece to the existing downspout using the vinyl gutter elbow. (see image) The end of the downspout should be placed on top of the barrel.
 


 

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  Project Steps  


Step 1 - Let's Begin
Step 2 - Goals/Objectives & Budget
Step 3 - Gather Information
Step 4 - Location & Size of Rain Barrel
Step 5 - Designing Your Rain Barrel
Step 6 - Design Review & Obtaining Permission
Step 7 - Preliminary Plans for Construction Day
Step 8 - Construction
Step 9 - Advertise
Step 10 - Develop Timeline
Step 11 - Construction Day
Step 12 - Maintenance
Step 13
- Write Summary Report

 

 

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