Clorox Liquid - Plumr Professional Strength Gel 32oz Put away the plunger. This thick gel cuts through standing water and works triple duty to dissolve tough clogs, prevent new ones from forming, and remove unpleasant odors. Suitable for all septic systems and pipes, including PVC, plastic, copper and old pipes. How to use: Pour: Slowly pour 1/5 of the bottle (2 cups) down the drain. For the really rough clogs, use the entire bottle. Wait: Let it sit for 15 minutes, or in the case of standing water, until the drain is clear. Liquid-Plumr Full Clog Destroyer won't harm pipes if left overnight. Rinse: Now that your clog is dissolved, flush away any leftover gel with hot water. It's that easy. For garbage disposals, follow the same usage directions and flush with the disposal running. Avoid all splashing.
