Rainwater Catchment System

Capture rainwater using Rain Barrels to ensure year-round landscape irrigation!

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How it Works

A Rainwater Catchment System ensures that you have water on hand year-round for landscape irrigation. Catch rainwater from your roof in the wet months to use as irrigation during the dry months with our rainwater capture system.

These rainwater capture systems harvest rainwater by making a few simple alterations to a chosen downspout(s). Our custom installation includes a leaf filter mechanism and a first flush device to ensure that your water stored has as little organic material as possible. Your Rain Barrel(s) will fill to capacity, and our installation directs overflow based on landscape needs.

Benefits of Rainwater Catchment.

Benefits of Rainwater Catchment —


Prevent stormwater from flowing into the streets where it accumulates pollutants that will flow untreated to local waterways, the Bay, and the Ocean with our rainwater capture system. The rainwater you capture and store is suitable for all plants, including edibles.

  • If your chosen volume of the barrel is large enough, you can save noticeable amounts on your water bill, especially during the drier months.

  • Utilize a simple system that is designed around your current landscape. Depending on the aesthetics of your yard, these barrels can be placed discreetly.

  • Once the barrel is full, you will have a supply of emergency water

  • Systems can be designed to automatically drain slowly during the dry months via gravity or pumps.

  • No permits required!

  • Estimated 4 - 8 hours of installation time, your build will be completed in a single day.

  • Feel great knowing you are taking control of your storm water and putting it to use in your landscape.


Rainwater is one of the most valuable yet highly undervalued resources around us. It has the potential to be used in so many different ways, including irrigation for private and even commercial landscapes, cleaning purposes, and more. You can play a part in minimizing water wastage, using this freely available water efficiently, and preserving the environment by installing a rainwater capture system.

It’s an excellent way to play your part in environmental preservation while still gaining a significant benefit for yourself too. You’ll spend less on lawn and landscape maintenance, irrigation systems, and bills by reusing water from our rainwater capture system.

Many counties and cities in the Bay Area are providing rebates to residents who install rainwater catchment systems, as well as other greywater systems, in their homes. Check below to see if your city or county has a rebate for rainwater capture system installations. If you do not see your city or county listed, contact us, and we can help you research rebate programs in your area.


At Greywater Landscape Design, we are experts in greywater systems and have been implementing these systems throughout the Bay Area since 2016. Our customized household systems save our customers money on their water bills and preserve their home landscape during droughts!

See some of our recent Rainwater Catchment system installations here.