2 ms·
>Wonder how is this one better. "Conventional water-treatment technologies include chemicals, which can produce toxic byproducts, and ultraviolet light, which
by hollerith 3y ago
>Wonder how is this one better.
"Conventional water-treatment technologies include chemicals, which can produce toxic byproducts, and ultraviolet light, which takes a relatively long time to disinfect and requires a source of electricity."
- asdff 3y agoLittle hand pumps or even filter straws exist too. Handy for camping but they will freeze.