Filter Cleaner by Spa Marvel® is essential for cleaning your hot tub filter without the use of harsh chemicals. This powerful filter cleaner is a powerful cleaner designed to remove oils, hair, dirt and grime that gets trapped in the fabric of cartridge filters without the use of bleach or harsh acids. Simply remove filter from spa and rinse with a spray hose. Add two capfuls of spa filter cleaner to up to 20 liters of fresh water in a pail. Soak filter overnight in the solution. Rinse filter thoroughly with fresh water. Ideally the filter should be allowed to dry before replacing.
I have tried other filter cleaners and this is by far the best. Instead of buying small individual packages this is much more economical and the product does a great job as I can add as much or little as I want.