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[deleted] t1_iudxvvl wrote

How many rain barrels you need to wash 100,000 people's hands?

10,000 people?

1000 people?

100 people?

1.28 gallons per toilet that's 69.5 Billion gallons required to flush Chinese toilets if they only flush once day. 50 gallons per barrel, you need 1.39 Billion barrels filled every single day.

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8to24 t1_iudytxk wrote

This pedantic argument totally misses the point. It isn't that rain water is the answer for the whole world. It is that treated potable water shouldn't be used for toilets. In some places rain water may work. In other places lightly filtered gray water (sink & laundry) might do the trick.

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cammoblammo t1_iuffyqi wrote

Why would you only have a fifty gallon barrel?

Here in Australia a small water tank is about 250 gallons. It’s not uncommon to find tanks twenty or even fifty times that size.

I know plenty of people who run their entire house with rainwater.

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[deleted] t1_iufouut wrote

The law says 110 gallons max. There's a deal to get water from the Colorado River signed by five states, taking water on residential properties prevents water from running off into the river.

Something like 70% of Australia is uninhabitable.

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cammoblammo t1_iugvsmf wrote

A large area of Australia is uninhabitable, which is why we use big-arse tanks to catch the rain.

In most new dwellings in some states (even—especially—in cities) it’s mandatory to have rainwater tanks installed.

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