In the process of draining my water in order to get the CYA and CH to acceptable levels, I am comcerned about my plaster job, or the lack thereof. (See Will Chlorine Kill Black Alage thread in algae section for the whole tale)
I have drained down enough to expose two feet of plaster (or what I call plaster because I think gunite is gray) But all of the exposed "plaster" is rough, like a pumice stone. Nothing smooth about it. I should think it should be almost smooth like vinyl.