hello, i live in the city in california and i want to put a water purification system in my home.
i've learned that reverse osmosis wastes a lot of water to produce the purified water. i don't understand how this could happen, but it doesn't appeal to me at all.
i'd rather use a basic two stage filter which doesn't seem to waste any water.
BUT, what will be passing through that reverse osmosis would normally take out? i can't seem to find this informaiton, they both seem to have the same list of filtered items.
anybody know? does uv filtration matter in the city?
also, would it be redundant to add a whole house filter, and then a two stage filter under the sink?
thanks, max