Clone-a-willy cleanup

I recently tried the clone-a-willy for a second time, failed again. I was wondering if anybody knew anything that would break down the mold? My girlfriend (slipped her mind) tried to rinse down the bits of the mold on the sink, down the drain and now we’re slightly clogged up. Idk how to fix it

View Reddit by PeaceTraditional1747 – View Source