Aqua Finesse Filter cleaner is great for de greasing the filters that become lodged with skin & debris and bio film that may have been collected by the filter. See below for recommendations.

How often should I clean the filters in my hot tub?
AquaFinesse™ works very closely with your tub's filtration system to ensure total water sanitation. We recommend cleaning the filters twice a week for the first two weeks. After this initial conditioning period, you should clean or rotate your filters on a weekly basis. For easier maintenance, we also recommend that you purchase back-up filters and rotate them regularly.
What's the best way to clean the filters?
For weekly maintenance, remove the filters from the tub and rinse them completely using the garden hose. Once a month, soak the filter(s) in a bucket using a filter cleaner and rinse off filters before re-use. Always allow the filter(s) to dry completely before reinserting them into the tub.
How often should I use AquaFinesse™ to clean my hot tub water?
Use AquaFinesse™ as directed once a week -- do NOT overdose. Set a specific day for this. The
sanitizing tablet should be replaced in its dispenser as soon as it has dissolved (approximately 7 to 10 days).
Question:
I just started with AquaFinesse™ and my water is dirty and cloudy - what am I doing wrong?
Nothing! In fact it's a sign that the AquaFinesse™ is working properly to recondition your spa water and equipment. If your spa is older than six months, a considerable amount of calcium and scale buildup will be released by AquaFinesse™ and flushed into your spa * .
During this reconditioning period, we recommend that you clean your filter(s) twice a week. This helps to ensure that clean and clear water is flowing through your hot tub. When spa is not in use, ensure that the valves, jets and water features are open and water is allowed to flow through them. Soon your water will be soft and odor-free without feeling slimy or greasy!
*Do not enter hot tub if you cannot see the bottom of the spa.
We normally recommend for large amounts of bathers you clean the filters every two weeks however this can be extended to every four weeks for light/ occasional bathers.
You may use this system with a disposable filter.