How should we aim to keep our water supply clean? (poll 8032263)

How should we aim to keep our water supply clean?

Switching to organic soaps and detergents to avoid chemical contamination.

By using grey water (waste water from showers/baths) to flush the toilet.

By becoming more aware of water use (when washing dishes, showering, etc).

Trying out water-less toilets.

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See this poll on: https://poll.fm/8032263/embed