I'm using ipex sch eighty ball valves with unions either side on this sewsge press im attempting to plum, its been interesting anyways just curious why do these ball valves have a dirrectional flow arrow on them this may be a very rookie question but im just not sure why a ball valve wouldnt close either way?? I ran into this before luckily theres unions both sides which makes changing them quite easy. Any clarification would be greatly appreciated thanks seanny
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