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How Greywater Systems Work

Comfort Zone - Plumbing, Heating, Air Conditioning Blog

McMahon Plumbing + Heating Blog

Greywater systems are a novel but simple technology designed to safely recycle water from inside your home for use outside, taking pressure off septic systems and conserving water.

The greywater system is a small unit that resembles a recycling container and recycles the water from your washing machine, bath and shower for outdoor irrigation use. It is easily installed by a plumber. The unit serves as a filtration system and does not store any water, so its capacity is unlimited.

How does it save money?

Every time you do a load of laundry, the greywater system moves water outside to water your garden or lawn. Not only do you cut water consumption if you normally water the garden or lawn, you also cut the amount of water being deposited into septic systems. A family of four can reduce their water consumption by up to 40,000 gallons annually while protecting their septic systems.

Is it safe?

Greywater is defined as water from showers, baths and washing machines, and it is safe. The greywater system filters out lint and debris. Soap levels are retained in the greywater as they add nutrients to the soil. All that is needed to safely reuse the recycled greywater from your washing machine is to switch to a detergent with low or no phosphorus. That’s it. (“Black water,” which originates from kitchen sinks, dishwashers and toilets, is never used with the greywater system.)

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