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Greywater is a great way to reuse laundary water for landscapes and garden. Here are some tips to do it right and maximize the benefits.

Do

• Make sure greywater is discharged at least 2” below mulch or rocks and is kept underground.
• Discharge greywater between mulch layers to let mulch filter the greywater and to let soil microbes purify it.
• Use up the greywater every day.
• Use greywater to irrigate trees, bushes, vines and flowers.
• Make sure greywater goes directly to the root area.
• Check your plants if they are healthy, especially for overwatering or underwatering.
• Use 3-way valve to divert water to landscape or sewage.
• Turn 3-way valve to discharge into sewage if chlorine bleach is used or if diapers are washed.
• Use detergent low in boron and sodium.
• Use these recommended detergents proven to be greywater system friendly: Oasis Cleaners, ECOS liquid detergent or Mr. Bronner Liquid Soap. (For your convenience, you can order these products here.

Don’t

• Discharge greywater on the surface or let it run off on property.
• Spray greywater around your garden.
• Let children or pets play around standing greywater.
• Install greywater system near creeks or rivers.
• Store greywater over 24 hours as microorganisms will grow and get smelly.
• Use filters that require cleaning.
• Let edible parts of the vegetable touch the greywater or soil.
• Irrigate root crops, such as carrots, potatoes, yam, etc. with greywater.
• Let chlorine bleach go to the garden.
• Use water from kitchen sink and dishwasher.

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