Saving water is not just good for the planet, it makes good business sense. So how much do you know about water conservation and water-efficient systems? Take our quiz and find out! You could win a $25 gift card.
Greywater may contain sewage while blackwater comes from sinks, washing machines and other appliances apart from toilets.
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Blackwater becomes graywater after undergoing a dichlorination process.
It is a distinction without a difference – both are names for unpotable water.
3.5 GPF
2.25 GPF
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1.28 GPF