Mr Muscle Drain Gel cuts through standing water in your clogged drain, dissolving even the toughest clogs. Use it once a week to clear blockages and slow-running drains anywhere in your home. Just pour 1/3 contents of the bottle down the plughole to attack the blockage directly. Wait for 5 minutes before flushing with water. This strong gel cleaner clears blocked sinks, plugholes and pipes and cleans & freshens pipes. You can use the product for all kinds of pipe.