Does Drano work better the longer you leave it?


  1. Does Drano work better the longer you leave it?

Does Drano work better the longer you leave it?

For clogged or slow-running drains, apply the product and let it work 15 minutes, then flush with hot water. For tough problems, allow 30 minutes before flushing. Drano® Max Build-Up Remover works over a longer time period to prevent clogged drains.