Help. I'm in a battle with my contractor. While filling the pool I called out numerous imperfections in the base of the pool. He insisted that it would correct with water pressure. It's a big pool. 23x42 free form. However, now that the pool is filled, and the lights come on, the pool floor looks like the surface of the moon. I have sent them pictures and requested a meeting at night so that the can see for themselves. I am preparing for a list of excuses and reasons to wait it out. I'm not willing to. My pool dose not even have concrete around it and I think it would be an embarrassment to put their name on the work. How smooth can the pool base of vermiculite be? My last pool was a concrete base and looked nothing like this.. Advice please.