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Does it have to be captured o-rings for DIR or is that just "optimal". Is optimal mandatory?
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Hi Gavin,
No one is going to send you home from a Fundamentals course in disgrace if you have a manifold with facing o-rings if that's what you are worried about... so if you have access to a cheap set of doubles get them. You can always replace the manifold later
Agir do a nice one.
Fraser.