https://community.usms.org/swimming/f/general/11574/how-do-you-remove-black-scum-from-capsEvery once in awhile I find a cap in the bottom of my bag :D and it&#39;s practically new, but has those dreaded black dots of scum on it. is there ANYTHING that removes them from caps? I&#39;ve tried comet, vinegar, even tile cleaner, with no luck.en-USTelligent Community 12https://community.usms.org/thread/188446?ContentTypeID=1Mon, 18 Nov 2013 11:45:46 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:454b824b-1e52-497e-87d5-050db81cb721gobearsThat&#39;s probably mold, isn&#39;t it?<div style="clear:both;"></div>https://community.usms.org/thread/188466?ContentTypeID=1Mon, 18 Nov 2013 03:13:33 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:34763cad-a736-4d06-9364-28c5d5bbd358andesoak it in Bleach and gently scrape it off best bet is throw it away get another one then keep it dry after each use<div style="clear:both;"></div>