If you don't test it how do you know what filters are needed to remove the contaminants. You may be filtering out things that aren't there and not filtering the actually hazardous things in your water. Although you probably guess things like PFAS and microplastics which appear to be ubiquitous now.

i use carbon filters, berkey specifically

they have a good reputation, but aren't foolproof

i trust govt + berkey in series more than I trust either alone

basic probability

I've only heard not good things about Berkey.

I've only heard and experienced good things w/them.

Have you tested your filtered water - in various conditions - or you just trust it based on the words of others?

i trust them based on berkey's reputation, but not fully

however, in series, i trust the govt water + berkey more than I trust either independently

basic probability

I just trust the carbon filters. Sorry.

This is hilarious. You don't trust your local government, which is accountable to you and is made up of people living right next to you (drinking the same water); but you DO trust a faceless, unaccountable corporation. I guess the corporation probably has better marketing!

there are NSF/ANSI standards for water treatment: https://www.nsf.org/consumer-resources/articles/standards-wa...

There are filters that are certified by NSF to comply with those standards https://info.nsf.org/certified/dwtu/

just hope one of them isn't lying

Who told you to? : )

the internet

that's great! : )

You just trust corporations.

I mean I trust corporations more than I trust the government, but 0.002 is more than 0.001.

You seem like a very trusting person.

i don't trust either, but I trust both in series more than I trust either alone

this is basic probability