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I then cut the long segments, 20 inches left 1 inch extra for the way I drilled 36 holes.
Next comes gluing. This must be done in a very well ventilated area, I'd suggest going outside. I didn't use primer, you may want to. Follow the instructions on the cement for actual technique. Remember to keep the positions of pieces correct when putting this together, and don't get them rotated wrong. I'd suggest putting the short pipes into the corner fittings, then the corners on the outer long pipes, then the tees on the inner long pipe, then then add the outside long pipe assemblies to the middle (this requires doing 2 joints at once, so be quick), and finally add the bushing reducer.