Hard water can cause streaking and uneven color when dyeing. Calgon keeps calcium and other mineral in suspension; therefore, they will not interfere with the dyeing process.
1 lb/0.45 kg (Item CHM1005) pictured
5 lb/2.27 kg (Item CHM2005)
25 lb/11.34 kg (Item CHM3005)
Use 1 cup/0.23 kg Calgon per washing machine load when dyeing in washing machine. Use 1/4 teaspoon/1.25 g per 8 fl oz/0.24 L dye solution in dye bath.