Here is what my reef octopus directions say. Collection Cup: It should be cleaned at least once a week, depending on the organic load.
Cleaning will enhance the extraction substantially.
Reaction Chamber: Take apart skimmer and clean every 6 months recommended.
Pump: Take apart pump and clean every 4 months recommended. Use a vinegar/water
solution for cleaning off excess build up. The parts included with the pump are the venturi,
volute cover, pinwheel impeller, and shaft with 2 rubber grommets.