[monetus]

Lots of activated charcoal does help to an extent, which is a standard for filters. The more, the better, which inevitably slows the water to a trickle. I use a kichu water filter(1) in an old Brita, but I have had my eye on an a glass dafi pitcher which should hold it aa well. I pack it full, and let it sit for a day if possible - then dump it in another glass pitcher with a little charcoal stick inside that.

https://kishucharcoal.com/shop/brita-reuseable-filter-501/

As the sibling says, reverse osmosis is the best.

[RobertRoberts]

It seems reverse osmosis is a _cause_ of nanoplastics.

https://apnews.com/article/plastic-nano-bottled-drinking-wat...

[jna_sh]

Doesn’t the post link to an article that suggests reverse osmosis membranes may be responsible for some of these nanoplastics? Am I misreading this?

[ohthanks]

The articles state higher levels in bottled water treated with RO but there are many stages of treatment and delivery involved in industrial scale bottled water production. Unclear if RO itself is the underlying cause.

RO membranes are tight enough and should effectively remove all microplastics from the output water. On a consumer RO system the water will still pass through a few final treatment stages and a few feet of plastic tubing before getting to your glass.

Very possible some additional plastic is being introduced in the post membrane stages and delivery but my assumption is that a point of use RO system is going to reasonably effective.

There is some chance the manufacturers are omitting the fact that all membranes are bleeding microplastics during use. At the moment I don't think we have enough evidence to say they are and most testing has shown them to be effective as a removal method.

[naikrovek]

no, you're not misreading.

[WA]

Water filters can be sources of all kinds of germs. Depending on your local water quality, it might make sense to not use them at all.