1. We probably don't have the sort of expertise you're looking for; most posters here are pool owners, not pool builders. PoolSpaForum.com probably has the highest concentration of actual builders participating.
2. Acid washing is destructive cleaning; that's how it works. What it will expose depends entirely on what's underneath.
3. However, my non-expert opinion (I've been in large commercial pool service for 25 years, not pool building) is that at least in part your issue may be that you are expecting a complete pool to look like a carefully selected sample. Ideally, it would. In practice, that's sort like expecting the Big Mac you are served to look just as bright and un-squashed as the one in the ad.
Good luck!
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