Well, I had already planned on enabling myself to rotate the reactor, but I am planning on doing it the way I saw Yugang did it (braided vinyl hosing in the photo below). Though I can admit that those union couplings are much sexier and I would consider putting them on either side if I hadn't already bought the hosing and clamps.
I guess my question might be a little silly, but even in the example you have provided of
@TRyan's reactor, he still had to cement elbows within each side (unless he didn't and I'm tripping). My question was more so, does the initial position that you cement the outlet elbow in matter? I plan on giving myself the ability to rotate the reactor regardless.
Sorry if I was a little confusing, and thank you so much for your advice.