Here's another question about Brita Water Filters. Presumably the efficiciency of the cartridges is affected by the amount of water they filter as well as the length of time they are in place? In which case, how many litres would one cartridge safely cope with? And is there really a maximum time required before changing it?
posted by ikp
on Sep 30, 2007 -
Brita filters: How do they work? There is much information about the fact that you need to keep the filter (partially comprised of activated charcoal, from what I can gather) in contact with water at all times. How does activated charcoal actually filter impurities? [More Inside] [more inside]
posted by fionab
on Apr 18, 2004 -