If you really feel anything at all then crack up the clumps and see In case the mass mixes back again in with the general regularity on the stain. If it dissolves to the stain you can use it. If it continues to be lumpy the stain has separated and http://deckstain36802.blogofoto.com/28756402/little-known-facts-about-residentialpainting-contractors-concord-nc-deck-painting