Filter cleaning solution with pH colour indicator. Extends the life of your filters. Canadian Spa hot tub Filter Cleaner. Dissolve the powder in a bucket of warm water and leave your filters to soak overnight. Then rinse with fresh water and leave to dry. Recommended each time you drain and refill your spa.
Ideal for giving your Spa Filters an overnight soaking to restore them after heavy use.
TIP: It is recommended that you have two sets of filters at all times. Once your filters need to be replaced, put a new pair into your tub and soak your old pair in this cleaning solution to use them again the next time your filters need replacing.