Induce.....it's 43,000 gallons....filled it from my pond but that's another story.
Tarheel............ I didn't feel I had sufficient masonry skills to finish the walls and floor of the pool and do a good-looking job.
So, I made the walls of concrete block, skimmed with a smoothing type mortar, and put in the vinyl liner. I actually like the touch and feel of the vinyl but it was mostly my inability to do a nice marcite finish that held me back.
Similarly, that why it's rectangular. I have no skills/equipment to do gunite so I could not free form it like so many beautiful pools are done today. It made it look pretty much like an apartment complex pool but I had to go with what I was capable of.