I’ve read about how to use food grade plastic buckets and the ceramic filters instead of the whole Berky, much cheaper. I got a Berk years ago and used it when water supply was catchment, tasted delicious and all weird anythings were taken out. I’d use on city water too, not nice chemicals in it. Much safer and better than just added purifying chemicals to water. Berks gets out everything pretty much and the water tastes fresh and good.