I didn't have space under my kitchen sink for a reverse osmosis system so I ran 1/2" PEX pipe to install an upgraded APEC reverse osmosis system in to install in my garage and used a valve on a 20 gallon APEC tank. I was concerned there would not be enough pressure to push the water 50ft to my sink and 2 refrigerators. We have plenty of reverse osmosis water and pressure in our sink with this valve and 20 gallons. Tank.
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