I drink from a brita filter
brita doesnt filter milk, it filters water and it does it bad job by itself.
if youre going to use it,after its done "filtering" just pour it in clear jugs, let it sit in sunlight effectively ozonating the water.
cold pour it in the filter before all this aswell.
when the water no longer has a gasy smell youre making progress for sure.
i prefer to make tea as well. basil is a good idea to give it some actual living nutrients.