Replaced an American Standard toilet internal components. Customer stated that the toilet was not holding water in the tank and also slow to fill. I found out the tank needed a rebuild on the internal components and later found that the angle stop was not supplying an efficient amount of water in order to fill the toilet tank. Once the toilet rebuild was completed. I then had to cut out the existing angle stop as well as remove drywall in order to tie in to the existing copper properly once I was able to cut back some of the copper, I rebuilt some of the waterline and was able to put in a new angle stop. Angle was done as a courtesy at no additional cost.