BTW, @kimkats I already had the plaster done when I posted. The existing plaster lasted about 17 years so not too bad. The W/C in the mix "looked" to be a pretty high slump so that may be an issue as with the use of a curing agent as I'm not sure. The water itself does have trace metals in it but sans having a softener I suppose I'm stuck with it as is. It did take a crew of 8 about 7 hours to do my pool and they didn't do too much "hard tooling". At any rate, the pool looks great right now and we're selling the house. Next time, when I build my own pool, I know a few more things to be mindful of so thanks for the links.