How do i clean and seal a Tennessee crab patio Exterior?

by Skip Straut
(Upper Saddle River NJ)

I have a coustomer with a 2700 sq ft patio around a built in pool.

I was going to apply a bleach and detergent solution then power wash away the dirt and mildew. they have a few small areas where there is white staining on some of the stones. looks like calcium.How do i remove that ? I was going to wait about a week for it to dry then i was going to seal it.
My questions are will the bleach and detergent stain the stone?
How do i remove the white staining?
How long should i wait for the patio to dry
before i seal it?
And finaly what type of sealer should i use?

Thanks for your help.


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