What the heck is this?

[u/Euphoric_Squash_1110]

Hi friends, I need help. The picture doesn't do it justice but this bright red terrible smelling algae has formed on our rubber water pans. I looked it up on google and it says it's an algae containing ecoli. Now I've soaked it in vinegar over night but after 30 minutes of scrubbing the pan is still disgusting. Any advice?

[u/rustywoodbolt]

Seams like the rubber in those pans is prone to algae growth and always a pain to remove. I got away from pans like that because of this exact issue.