I bought this after reading the reviews. I installed this with a 1" feed from my well and then fed a 3/4" PEX to the house. Right at the beginning the pressure dropped significantly after the filters and hose bibs on the house didn't show much pressure at all. This house is new. I removed the cartridges and the pressure was back to how it should be in the house except when I plugged in the sink the water pressure was zero. As a result, the faucet was removed and small "germs" were found, the same as in the secondary cartridge that shut off the water in the faucet. Now I'm very concerned these seeds are now blocking the non-freezing hose bibs, 3 at $40 each and I'll have to remove and replace them and I'm also worried about clogged shower valves. I wrote a message to Ifilters and didn't get a reply. Extremely disappointed.
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