Dying clothes in the washing machine - what sort of salt can I use??

[HollyGoHeavily]

I'm about to dye a white sheet bright orange using Dylon Machine Wash fabric dye. It says that I also have to use 500g of 'ordinary salt'. I've only got dishwasher salt in the house - do you think that would be ok to use??

[moocowme]

hm not sure. salt is very cheap especially home brand ones. are you sure ou can't whip to the shops or local store for some?