[jurroppi1]

what is it? pictures from photobucket don’t get through the firewall here.

[PowderMonkey]

Clorox chlorine bleach. Recommended to me by a plumber several years ago. He said if used regularly, it works better than Draino or Liquid Plumr. Won't hurt pipes. Breaks down soap scum, glutenous paste build up from potatoes, rice, etc., and dissolves hair. If the fungi can survive it, they can have the house.