How long do you let liquid Drano sit?


  1. How long do you let liquid Drano sit?

How long do you let liquid Drano sit?

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. Used regularly, it can help keep your drains flowing freely.