So I tried both filters. I think Brita's tastes were a little better. Filtration times varied for sapphire. New, she was about the same as Brita. After a while the 2nd filter in the pack became very slow. Like the video posted by Grace. I like to do my research before I give up or report negative reviews. It blocks the suction power! (This has happened twice already.) I'm a nurse and this will happen with catheters too and they won't expire. I lifted the filter, took it out, put it back in and the problem was solved. Drained normally again. With my third filter, I noticed that after about a month it started filtering fairly quickly. So it seems that the filters are slightly different even within the same product. I'll try a few more Brita filters to see if that's the case as I only use the one that originally came with the jug. Anyhow, hope this helps. I still find it a good product and way better than tap water. I also feel that removing excess minerals keeps my body much more hydrated :).
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