I started a recipe I found on this site 6lbs grapes,3.25c sugar, 1tsp yeast nutrient, 1 pkg. wine yeast, 5 pints h2o, 1 tsp p.e., 1 crushed campden tab., followed distructions did not do initial s.g. did my second racking and my s.g. is 0.990 any help would be appreciated