I used Distilled White Vingegar and ran the jets several times. IT seems to be ridding the problem I would also try Clorox Bleach but make sure you run the jets through several cycles before you take a bath. Try to avoid oils and things that may also add to the problem The next thing I am about to do is remove the cover to the filter and rinse it out. Much luck! Let me know if it works. To clean the jets themselves use an old toothbrush and scrub. Bon Ami is a good cleanser that does not scrach or try using Ajax or Comet for a stronger one.