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ArdernLockett t1_ixpqrzm wrote

Reply to comment by movdqa in How much water do you use per person per day? by movdqa

The 100 gal/person/day is outdated or includes non-residential water usage (e.g. water used to produce the goods that you use).

With more modern fixtures and appliances, the average residential use is closer to 30-40 gal/person/day. You'd also expect less water usage during the winter where there is no water usage for residential landscaping.

Old toilets used to require 7+ gal/flush, now the standard is 6 liter/flush (1.6 gal). Washing machines are similarly more efficient. Many places still cite old water usage estimates. The US uses less water than it did in the 1970's, despite having 50% more people.

Edit: 1970's not 1907's

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movdqa OP t1_ixqkjqw wrote

Thanks. I looked at about four sites and they generally reported 100 gpd or 300 gph. I remember when we went with Toto toilets many years ago and was struck by how little water they use compared to the originals from the 1970s.

Water scarcity is not the problem here that it is in other parts of the country but I think that it's good to conserve wherever we can.

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