What is a "john guest check valve" I'm looking for a check valve for a 3/4 to 1" sump line. Found one in home depot but I think it requires too high psi for what I need.
<a href=showthread.php?s=&postid=10725256#post10725256 target=_blank>Originally posted</a> by SoundsFishy2me2 What is a "john guest check valve" I'm looking for a check valve for a 3/4 to 1" sump line. Found one in home depot but I think it requires too high psi for what I need.
you're looking for a swing check valve (Click Here ), but don't rely on one to prevent back siphoning of the tank as flood prevention, any check valve will fail at the most inopportune moment.
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