On Apr 3, 9:39*pm, (David Combs) wrote:
The other day, in Costco, I saw a bunch of Purwater
water-filters (for eg glasses of water -- screws onto
kitchen-sink faucet -- manual turn-on for filtered
water, then switch back off again.

Anyone know anything about it?

How good at getting all the bad-stuff?

Any chance of getting all the medical drugs that
people pee out and ends up in reservoir and then
in my faucet?

THANKS!

David

any of those activated carbon filters are going to get most of the
organc crap out of the water, as well as any chloriney smell/taste, as
well as any organic crap that got chlorinated, which stuff sticks in
your body like forever. whether it's a whole house filter, a faucet
filter, a pitcher filter, .....

the main thing is to change the filter cartridge when the time is due,
rather than try to skimp; because the other use these filters have in
the lab is to concentrate dilute stuff; you run a lot of dilute
solution through the filter until it's good and loaded, then you can
get it do dump everything into the next couple of passes of water by
changing the pH or whatever. so if that's not what you're looking for
at home, you make an effort not to let the filter get good and
loaded.