Think those cockroaches are just passing through? Think again.Every time you pour starch, palm oil, or food scraps down your sink, they settle inside your pipes. Over time, this creates a thick, black, rotting layer of grease.This greasy slime is the ultimate five-star hotel for cockroaches, drain flies, and maggots. They breed by the thousands inside your walls, crawl up through your drain openings at night, and walk directly over your plates, spoons, and cooking pots. You aren’t just dealing with water that won’t go down—you are living on top of a hidden breeding ground for typhoid and diarrhea.