Any advice or opinions about concrete staining?

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Answers:
Power wash concrete first, let dry for at least 3 sunny days and apply "Bhers" concrete stain from home depot, I don't care for any other Bher product but this , very good and have great results. I use this mainly on clients concrete pool areas and get 3 yrs at least, I live in the N.E. so we get all what mother nature has to give, Good luck Les the painter