Hello everyone. My husband and I are about to break ground soon for our gunite backyard pool area. We would love to hear any advice you may have regarding any of the following. We are building a roughly 20X40 rectangle pool for grandkids and all family and would like to hear your thoughts on chlorine versus salt water pool. We are leaning toward chlorine at this time. It will have mostly 4ft-7ft areas with a "kiddie pool" area of 9" to 12" with blubblers. We plan to use this shelf area more for small grandchildren play-area, rather than tanning ledge. We also are looking at pebble sheen "ocean blue". We like cool blues, grays and are using silver travertine and snow white stacked stone for our accent wall that has sheer descents (do we need to be concerned about potential grime from water falls on light marble?). NE oklahoma's climate is changing; right now we get very hot summers 100-1 teens,. We get direct sun in the area from 11am to 5:00pm in summers. Going to make final decision about tile in the next few days. We are leaning toward a shimmery dark blue/glay glass 1x2'' tile. We love the popular blues, but would like to have something different. Thanks everyone in advance!