55-Gallon Rain Barrel
The 55-Gallon Rain Barrel provides 55 gallons of rainwater storage in a plastic (hdpe) container measuring 24" diameter x 35" tall. Priced between $50 and $120 ($0.91-$2.18 per gallon of capacity), this tank is an affordable entry point for homeowners new to rainwater harvesting.
About the 55-Gallon Rain Barrel
The most common entry-level rain barrel. A standard 55-gallon drum connects directly to a single downspout and captures enough water for a small garden. These barrels are widely available at hardware stores, garden centers, and through municipal rain barrel programs. Most feature a spigot near the bottom for attaching a garden hose and an overflow fitting at the top to redirect excess water. They are lightweight, easy to install, and require minimal maintenance beyond occasional cleaning and winterization in cold climates. A single barrel fills quickly during moderate rainfall — a 1,000-square-foot roof section produces about 30 gallons from just one-half inch of rain. For many homeowners, a pair of connected 55-gallon barrels provides a practical starting point.
Installation Guide
Installing a 55-Gallon Rain Barrel is a straightforward DIY project that most homeowners can complete in under an hour. Position the barrel on a level, stable surface near a gutter downspout. A raised platform (concrete blocks, a purpose-built stand, or a wooden platform) elevates the barrel and improves water pressure at the spigot — every foot of elevation adds about 0.43 PSI of pressure.
Cut your downspout to the height of the barrel inlet and attach a downspout diverter or flex-elbow to direct water into the barrel. Ensure the overflow fitting is connected and directed away from your foundation. Install a mesh screen over the inlet to keep debris and mosquitoes out. In cold climates, disconnect and drain the barrel before the first hard freeze to prevent cracking.
Tools and Materials Needed
- Hacksaw or reciprocating saw for cutting the downspout
- Downspout diverter kit or flex-elbow connector
- Level surface or platform (concrete blocks, paver stones)
- Garden hose for the spigot connection
- Overflow hose or PVC fitting directed away from foundation
- Mosquito-proof mesh screen for the inlet
Best Uses for the 55-Gallon Rain Barrel
The 55-Gallon Rain Barrel is ideal for container garden watering, potted plants, flower beds, car washing, and general outdoor cleaning. Its compact size makes it perfect for urban and suburban homes with limited yard space. You can connect multiple barrels in series for increased capacity without the cost and complexity of a dedicated tank system. Most homeowners place them near their primary garden area for convenient access.