Review on Watts Premier WP531152 Substitution Filters by Charles Fowler

replacement of these was "click". (Pun). Just press the button, wiggle a little, pull out, insert a new one. Two filters (sediment and pre-char) were sealed under vacuum. As I broke the plastic, I heard a whistle/pop of air going into the filters. The other two (RO Membrane, Post Carbon) didn't make the same noise for some reason. After the replacement, it seemed to me, the water flowed down the drain for a long time (2 hours), and with a faucet, bubbles came out of the faucet. pre-filtered water. This continued until the water tank was visibly empty and the flow from the filter tap became weaker, as if the tank had become empty despite being emptied. After another 2 hours or so everything stabilized, the bubbles subsided, then the water stopped running down the drain. I have no idea how this is supposed to work as there are no instructions included. In general, it's good now. I had old filters for about 4 years when I had to change everything except the reverse osmosis membrane every year.