Welcome. There are much better soaps to use that are not toxic at all. DHHQ and JB soaps are not meant to be used on locks. They are just repackaged with a cool colourful label. The ingredients are very toxic. Check out dreadockshampoo.com for healthy soaps. They are good in hard and soft water, too. So you don't have to worry about that.
welcome most dreadheads boycott knottyboy and dhhq since they profit from destroying dreads there are way better more ethical options out there