Happy Instant Filter Cleaner has been specifically formulated for your hot tub filter.
Application: Always wear rubber gloves and eye protection when using this product.
Remove the filter from the hot tub and hose off any loose debris.
Soak the filter in a bucket making sure all of the filter is covered.
Add 1 litre of Happy Filter Cleaner to every 20 litres of water.
Soak for at least 8 hours before removing the filter and thoroughly rinsing in fresh water.
Warning: Do not mix with other chemicals as a dangerous reaction may occur.