The Planted Tank Forum - View Single Post - high pressure co2 lines/check valves
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post #8 of (permalink) Old 09-28-2012, 05:40 PM
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Join Date: Oct 2011
Location: Blaine, Minnesota
Posts: 641
I'm a huge believer in brass check valves. I've tried plastic ones and in my experience they are worthless. Over the years I've used 4 of them and everyone one would let water past. I finally went to the industrial supplier McMaster-carr and bought some good quality brass ones. These work with a spring loaded plunger and haven't leaked a drop of water yet.
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