Green Gobbler granular drain cleaner is a choice for opening clogged drains safely and quickly. It will break down and liquefy on contact any types of grease, hair, soap scum, feminine products and any kind of paper products blocking the line without damage to the pipe or the environment. Repeat treatment once per month for preventative maintenance. Directions: Pour 1 Single serve packet of granules directly into drain, use small amounts of water to activate the product and to rinse off the sink basin and ...