I’ve been using a PUR brand water filter that attaches to the faucet for quite awhile now. If you have an older one I recommend getting a newer one. It has a little LED that flashes green and it will turn red when the water filter goes bad. Although I’m pretty sure it’s just a timer, it doesn’t actually detect the filter has gone bad I don’t think.

Also my area has a pipe issue and there may be Lead in the water… I’m hoping the filter helps but idk…