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Joined: Oct 2013
Posts: 57
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Joined: Oct 2013
Posts: 57 |
Are we talking about the last elbow.....the 22.5 or 45 that goes back up? The intention of this elbow is to not let air suck back into the system in a siphon situation, if you drill a small hole and its closer to the outlet any air would go out instead of back up towards the horizontal run.
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