This is one thing I never tried before. In adding the usual maintenance does of regular (not performance) algicide yesterday, I got looking at the label and noticed it says for persistent microorganism accumulation to use the initial dose, let the filter turned off after adding, and then filter for like 24 hours. The main ingredient is dimethyl benzyl ammonian chloride (49% by weight). Would this be an ingredient that would effectively combat mold and slime? It just got me wondering being that white water mold is fungal and pink slime is bacterial. I DO know that adding the initial dose causes some major foaming in the pool for well over a week (had to add anti-foam in order to get ready for a pool party back in June). I'm highly skeptical that this algicide would be 'the answer' to the mold/slime problems but wanted to get some opinions. A few people suggested to me earlier this season that I should use performance algicide instead. I didn't know there was a such a product in the baquacil line until it was mentioned to me.