open-source rainwater catchment methods and kits

portland, oregon

Pay Attention to Water !  Contain Rain is a local project helping our community of Portland, Oregon to do just that. We are focused on developing methods of catching, storing, and using rainwater. We aim to change the way people think about DIY water conservation. We are open source.

Portland is no stranger to rain, and that is why we have to learn to collect, manage, and protect our water. How do you use our precious drinking water? Why?

Contain Rain is now offering 330g galvanized steel-reinforced "totes"!
These repurposed beauties hold as much as 6 rainbarrels worth of water, with a proper foundation can be stacked two-high, and are only approx. 4' x 4' x 4'.
The metal supports surrounding the cistern allows for easy customization with lattice, bamboo fencing and more.

Click here for our offerings on standard rain barrels.


Do you want to work on a project yourself, but need some help? We offer consultation on design & installation.
Drop us a line to talk about your project. We've helped scores of our neighbors create, install, and maintain their catchment systems.
Rainfall in PDX will drop around 30-40 inches of water on your roof this year.1 For an average 2,000 square foot roof (40'x50'), that's over 30,000 gallons. Or nearly 600 gallons on an average week!2

1. Calculate your home's "rain footprint". 2. (@ 75% capture rate) Source:
"Oregon Smart Guide Rainwater Harvesting".
Find your house, measure your roof.
330 Gallon Tote System provides everything your home needs to start harvesting the rain. Now with a debris-filter offered standard.

These totes are simple and easy to integrate into any garden. The metal meshing surrounding each provides the ability to attach latticework for growing creeping vegetables, or to attach camouflage fencing around the cistern.

CAPACITY: The ability to connect 330g totes is limted only to the amount of appropriate space in a garden. Capacities are: 1 = 330G; 2 = 660G; 3 = 990G; etc. How much rain should I collect?

MEASUREMENTS: 48"-deep by 40"-wide by 54"-high (4' x 3.3' x 4.5'). Surrounded by a 1" galvanized steel support "cage" (included in the measurements). The intake in the top (hole in the red cap) is a 2" female NPT (National Pipe Thread). The outlet is on the width plane and is a 2" NPT male industrial plastic, heavy-duty ball valve. The container has a thick plastic 'foot' which steps it off the ground 6" (← 6" included in height measurement).

INTAKE/OVERFLOW METHOD: Intake depends on your site and gutters. Because of the now-standard custom intake filters, the overflow is also built to fit each system. However, we also produce a 2" intake version of the Contain Rain Water Arm which allows the maximum flow into the tote.

EXTRACTION METHOD: For this kit we offer a standard 3/4" garden hose adapter—connecting the hose directly to the tote (NOTE: The flow is controlled by a large 2" ball valve which comes standard on the tote).

The tote itself varies in price. We currently offer brand new totes and used totes. Used totes are professionally cleaned and previously contained no ingredients harmful to humans or the environment.

All of our tote kits come with an assembled debris filter, and optional pre-filter, all necessary parts for intake and overflow, and a full installation consultation.

Please drop us an email and we will send you our tote pricing PDF.