Collection Cup: Should be taken away and clean at least once a week, depend on the organic buildup that has accumulated. Cleaning will enhance the extraction of dissolved organics substantially.
Skimmer body: Clean every 6 months or as needed by wiping the acrylic walls of the body down with a soft sponge or cotton cloth and fresh water. Never use any chemicals to clean the skimmer or any acrylic products. For stubborn calcified buildup a soak in diluted solution of vinegar and water can be used.