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/2.3 kg (Item CHM2005)
25 lb/11.3 kg (Item CHM3005)
Use 1 cup Calgon per washing machine load when dyeing in washing machine. Use 1/4 tsp per 8 oz dye solution in dye bath.