I have a tall sand filter bottle but use glass media (down to 20 micron), then chorine injection, then two paper filters from Pentair (20 and 5 micron) then a carbon filter 5 micron, then UV - And I drink the water for years now. Yes a pain to change filters every 3-4 months and the UV annually but it is a great system - 100% drinkable. The g;ass media is good for 5-10 years and has an automatic backflush on it.