Depending on how often you use your spin mop, you may need to wash or replace the head several times a year. First, purchase a replacement head from the same manufacturer to remove the spin mop head. Then, to attach the replacement head, follow the directions that came with your mop. Step on the mop head's soft section and slowly pull the upper disc of the mop base away from the cloth disc; a click will sound, and you will remove the mop head for washing or replacement.