GETTING MY SEALERS TO WORK

We just had a paver patio and pool installed. They did not seal the pavers. I feel the the installers splattered pool shock on the pavers. Which merchandise can be the best to wash that? Want to seal the pavers in Spring.Matte-finish sealers are deemed breathable since they don’t form a film. Acrylic sealers sort a movie that dries to a wet or la