Gravity filter
At the bare minimum, one gravity filter can cover a family. It's the first filter I'd buy.
A gravity filter is a dirty-water bag that drips through a filter element into a clean container. No pumping, and it can make enough water for a family while you do other things.
Hollow-fibre filters are fast and light. Ceramic filters are slower but can be scrubbed clean many times.
Never let a hollow-fibre filter freeze after it's been wet. Ice can crack the fibres and you won't be able to tell.
Steps
- Fill the dirty bag from the tap, rain barrel or creek.
- Hang it higher than the clean container.
- Let it drip through the filter element.
- Backflush the filter after each use.
Products to consider
Sawyer Squeeze
Small hollow-fibre filter. Pairs with a dirty bag to make a cheap gravity setup.
See on Amazon.caBerkey-style countertop system
Steel or plastic housing for home use. Check the filter certifications.
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