Have you seen how quickly FLOW-EASY® Drain Opener can unclog your drains? Take a look at this video. FLOW-EASY® Drain Opener dissolves ANY organic material (hair, grease, paper, rags, soap, sludge) to clear clogs in 15 minutes. It is safe to use on sinks, toilets, tubs, and shower drains. Will not harm septic tanks or PVC pipe. The power of FLOWEASY is in the proprietary formula that activates on contact with water. So, there is no need to remove water from the drain.