I will start my inground pool build soon and have a question about the rebar pattern. I will be contracting out the project myself as I have found the local bids WAY too expensive. One local company claims to use #4 (1/2") rebar on 6" centers for their pools. From what I have read on this awesome forum and elsewhere, #3 (3/8") is sufficient. Also, 8" or 9" centers seem to be more common. My pool will be a gunite pool and a sport style, three feet deep on both ends and five feet deep in the center. What steel size and pattern is recommended for a pool like this? I am in Texas near Houston and my soil is high in clay content (it developed severe cracks with long periods of no rain).
Thank you four your input.