I had a very similar return manifold on my old cube and it was just secured in place by the plumbing (held in place by a union). There was maybe 1/2" of play at the end of the run but you really had to wiggle it for it to be noticeable.
Thing is, there are times when you may *want* a little wiggle room up there (reaching in with a razor blade to get at a spot of HA or coraline or something, for example). So honestly I'd just sort of leave it as-is.
Everything looking good. That sump is tight, haha!
(And not hating... Not sure why you'd think I was hating, geez.)
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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