The hotter you make YellowGo solution, the faster and more effective it becomes. Use hotter solution on white fabric. Use cooler solution on colored fabric to protect original colours. Test on hidden area before using on coloured fabric. (If original colour is affected, rinse immediately, then soak in dilute solution of ammonia.) When using YellowGo on wool, silk, or synthetic fabrics, add enough RustGo to the YellowGo and water solution to turn it pale green.
In the Laundry Machine: Be sure machine is clean. Rinse load thoroughly. Fill wheel to low level with hot water. While wheel is turning, add 2 oz. of YellowGo for every gallon of water in wheel. Run until unwanted dye disappears. (Heating the solution in the wheel will help remove the dye; boil if necessary.) Rinse thoroughly with water.
Outside the Laundry Machine: Rinse fabric in warm water and put aside. In a clean plastic or stainless steel container, prepare enough solution (2 oz. of YellowGo for every gallon of warm water) to allow free movement of fabric. Soak fabric in YellowGo solution, stirring occasionally, until unwanted dye disappears. (Heating the solution in the wheel will help remove the dye; boil if necessary.) Rinse thoroughly with water.
On the Spotting Board: Prepare solution of 1 part YellowGo to 20 parts cool water in clean spotting bottle. Flush stained area with cool water. Apply YellowGo solution to stained area and let stand until unwanted dye disappears. Rinse thoroughly with water.