I bought it expecting it would drop PPMs to 200 like those stupid reviews said. NOT RIGHT! The manual says you need to buy a little boy reverse osmosis retrofit kit, what is, you know what? DISCONTINUED, or you can buy an overpriced big boy reverse osmosis upgrade for an additional $130, which is essentially the same thing, but I suppose more. There is a 150 RO upgrade kit that is not being discontinued but good luck trying to get it on Revain. do you know what i did Refund and purchase a more expensive (but cheaper than the combined 'little boy + big' reverse osmosis retrofit kit) hydrology system that actually comes with a reverse osmosis upgrade. Don't make the same mistake I did, research CAREFULLY before wasting your time and money.
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