Is GREY water legal in California?

California’s Graywater Standards are now part of the State Plumbing Code, making it legal to use graywater everywhere in California. These standards were developed and adopted in response to Assembly Bill 3518, the Graywater Systems for Single Family Residences Act of 1992.

What can I do with my GREY water?

The easiest way to use greywater is to pipe it directly outside and use it to water ornamental plants or fruit trees. Greywater can also be used to irrigate vegetable plants as long as it doesn’t touch edible parts of the plants.

Can GREY water be treated and recycled?

Ultimately, greywater can be disinfected with ultraviolet and/or chlorination, to ensure residual disinfection at point-of-use.

Is GREY water OK to drain on yard?

As long as you’re only putting biodegradable products down the drain, graywater is perfectly safe for irrigating plants. Kitchen sink water is technically considered graywater as well, but because of its grease content it often requires additional treatment before being used for irrigation.

How do I collect GREY water from my garden?

Redirecting the used water from your washing machine is a great way to collect greywater. Simply get the water outlet hose that is usually directed towards a drain and place it in a large bucket. Remember to keep an eye on the bucket as your washing machine goes through its cycle to make sure it doesn’t overflow.

Are gray water systems worth it?

The average greywater system installed on a single-family home can save about 2,600 gallons of water per year, and have a lifespan of 10+ years. The cost of greywater would be about 10¢ per gallon, 20x more than municipal water costs.

How do you treat GREY water off the grid?

The easiest way to do this is with the bucket method—simply dumping the greywater directly into the toilet to flush it. However, you can also install a system that combines a sink with the toilet, so that you can wash your hands (turning the water into greywater) that goes directly into the toilet and helps it flush.

Can I store GREY water?

Can I store greywater? Do not store greywater! Learning to use greywater can feel counter-intuitive because the rules for irrigating with fresh water do not apply. You can store fresh water or rainwater for later use, but greywater should be used as soon as possible after it’s produced.

Is washing machine water OK for plants?

Conventional top-load washing machines can use up to 40 gallons of water per load. Washing machine water can be used to water the plants in your yard and garden instead of being sent to the sewer drain.

How much does it cost to set up a greywater system?

between $1,000 and $4,000
A grey water system generally costs between $1,000 and $4,000 or $2,500 on average, including installation. Costs can run as low as $700 for a simple system that runs from your laundry room to your yard and up to $20,000 or more for a more complex, full-house system.

Is a greywater system worth it?

How long can greywater be stored?

Greywater should not be stored for more than 24 hours. If the greywater is stored for too long, the nutrients will begin to break down and the water will emit an unpleasant odor.

Can I water fruit trees with GREY water?

Never use grey water on food plants of any sort: ie, vegies, herbs, fruit trees etc. And don’t even consider using grey water near native plants, as the phosphates from detergents will kill them in no time.

How do you get rid of greywater on the grid?

Who oversees the graywater system in San Diego?

The County of San Diego oversees graywater systems for the unicorporated areas of the County only. For incorporated areas (cities), please see the respective city for graywater requirements.

What is a graywater system?

A graywater system is a type of onsite wastewater treatment system that utilizes trenches, subsurface drip irrigation systems, and mulch basins for wastewater disposal but can have the added benefit of using the wastewater as a subsurface irrigation source.

Do you need a permit to install a graywater system?

Graywater Systems. A Clothes Washer System, which only utilizes graywater from a single clothes washer, can be installed without a permit, provided the system is installed in accordance with the Graywater System Requirements for a Single Clothes Washer. Larger graywater systems, which require more extensive plumbing modifications, require a permit.