Rainwater Harvesting

Rainwater Harvesting refers to the collection and storage of rain. Before the creation of public water utilities, rainwater harvesting provided water for many American homes. It is still popular in places with limited water resources such as island communities like Hawaii. In our arid Southern California climate, recent drought conditions remind us how quickly we can run short of water.

Using purified potable water for purposes like flushing toilets or irrigating landscape is a waste of a valuable resource. San Diego residents have become smarter about the role of rainwater harvesting in fulfilling their daily water needs, both from an environmental and a cost perspective.

Collection comes from rooftop runoff and storage in catchment tanks. Stored water can be used for non-potable purposes such as irrigating lawns, washing cars, or flushing toilets.

Rainwater harvesting is also effective in reducing stormwater runoff pollution. When rain falls, it is clean, but it immediately picks up pollutants from rooftops and pavement. This pollution is carried into storm drains and then into streams. Collecting storm water from rooftops and directing it to storage tanks so it can later be used for irrigation or flushing decreases the volume and rate of runoff.

The good news: the days of using unattractive storage barrels are long gone.

Good Earth Plant Company offers several innovative products developed around the world to match the compact spaces in our urban communities, from storage tanks to barrel kits.

Save money and water in San Diego with Rainwater Harvesting from Good Earth Plants.

Rainwater harvesting can help save water and lower water bills in San Diego County homes.


Capturing and reusing rainwater is an excellent way to make your home more sustainable. Other benefits include:

  • Relieving the burden on our limited potable water supply
  • Lower water supply cost
  • Increased independence and water security
  • Cleaner water
  • Emergency water supply
  • Greater sensitivity to and connection with natural cycles


Schedule a site visit with a Good Earth Plant Company expert for a complimentary assessment of your property and resources to determine the best rainwater system for you. We will review your water usage and specific needs; calculate the type and amount of rainwater runoff on your property; and assess your space options and design preferences to make a recommendation that fits your lifestyle and budget.

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Good Earth Plant Company’s expert installers can set up your complete rainwater harvesting system, whether you purchase one of our systems or whether you purchase one on your own.


To purchase RainWater HOGS or Rain Reserve ™ Diverter Kits, contact us.

Looking for another type of system? Good Earth Plant Company recommends the products sold through Rain Harvest Systems.

Greywater Systems

Greywater is untreated waste water which has not come into contact with toilet waste. Greywater includes waste water from bathtubs, showers, bathroom wash basins, washing machines, and laundry tubs. It does not include waste water from kitchen sinks, photo lab sinks, dishwashers, or laundry water from soiled diapers.

For many years it was illegal in California to use greywater systems, although individuals often did it anyway. In 2010, the state California Building Standards Commission updated the plumbing code, legalized the use of greywater systems.

Under the current California greywater code you no longer need a permit unless your local community requires one. Good Earth Plant Company can help you determine whether you need to follow any additional regulations or secure a permit in your community.

You are allowed to discharge greywater into a simple mulch basin instead of the complicated sub-surface emitters previously required under the old regulations. You don’t need any expensive pumps or filters.

Good Earth Plant Company can work with you to determine which type of greywater system is appropriate for a given site, advise you on water harvesting earthworks, plant selection, eco-friendly products, and the California greywater code, and finally, install your selected greywater system efficiently and safely while adhering to all best practices.

Here’s the new code as amended.(pdf)

Find more information on greywater systems:

Greywater Alliance: http://www.greywateralliance.org/

Greywater Action: http://greywateraction.org/