I’m curious, how come most people here seem to use ridged pvc plumbing as opposed to flexible pvc tubing? I’m planning to run a line from my hob overflow down to a sump I’m setting up. I’d like to use flexible pvc (often found for hot tubs in the hardware store) so that I can easily move slightly my small 10 gallon sump cabinet to get better access to my power cords. I’m just wondering, looking at everyone’s ridged plumbing schemes, what the disadvantages would be?