Joanniern,
Yes concrete is colored grey, wife does the color decisions and we have a grey brick house.
As far as aquabright, we just lucked into the builder that uses it on majority of their pools. Said they had exclusive rights for it in TX, not sure how true that is. But sales guy sold us on it right away, but then after that I've been happily reading about good review/results on the site from others. As Kim pointed out one thread about it and there is another thread with newer pool built with it in same area. Kevbrim, I think is the poster and I think we had the same PB. Definitely worth looking into.
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