Drano Dual Force Foaming Liquid Drain Cleaner
Drano® Dual-Force® Foamer is a serious clog buster. Its deep-cleaning foam attacks plumbing problems and removes hair and gunk from pipe walls. Use Dual-Force® Foamer for effective drain cleaning that won't harm your pipes or septic systems. How to Unclog a Drain: After you pour Drano® Dual-Force® Foamer into the drain, the ingredients immediately begin to interact with one another. The foaming action fills the pipe and thoroughly coats the pipe walls, dissolving the gunk. A blast of hot water flushes away what's left of the clog.