Your Primer for Preparing Surfaces for Plaster, Pebble and ...
May 25, 2016· After water blasting a surface, crews use a power washer to blow splatter and debris back into the pool, acid wash the vessel, and pump everything out. "You''re not shoveling out sand, wheelbarrowing it out or hauling it off to a dump," says Dave Schilli, president of St. Louisbased Schilli Plastering Co. Inc.