Hi Judi, I agree that water conservation is a good thing, and that use of grey water can often have more benefit than risk, but there always remains an unknown amount of risk in grey water use. Funding for 'best available science' in resultant water quality sampling and toxicologic analysis is always short changed..... and degrees of risk remain. How much risk are we willing for our own two year old child to be exposed to in any given grey water use scenario, and how sure are we that we are not harming that child?

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Hi Judi, I agree that water conservation is a good thing, and that use of grey water can often have more benefit than risk, but there always remains an unknown amount of risk in grey water use. Funding for 'best available science' in resultant water quality sampling and toxicologic analysis is always short changed..... and degrees of risk remain. How much risk are we willing for our own two year old child to be exposed to in any given grey water use scenario, and how sure are we that we are not harming that child?