Powerful Sink and Drain Cleaner Chemical Powder Agent for Kitchen Toilet Pipe Dredging Wide Applications kitchen water pipes, toilets, bathrooms, floor drains, oil clogging, sewage immersed pipes, and other drainage pipes. Wonderful Powder Cleaning Tool Set! It will take time to work. Dissolves grease, hair, oils, soap scum and paper products easily. Sink and Drain Cleaner is made of a non-corrosive formula that's safe on septic systems. It won't harm your drains, pipes or septic system.