haven't yet, but i will get them from plumbersuooly.com, where xp got his stuff.
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No I got my check valves from McMastercarr. I htought plumbersupply only had spring check valvesLet it be!!!Comment
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I have 3 of the diaphram cv's on my vents and the ballast puppy pumps push the water out with no problem. Make sure you do not get the spring assisted swing checks. I felt it required more pressure to open these then the diaphram checks. The regular swing check requires the least amount of pressure-almost none to open.Comment
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