After testing nine liquid chemical drain cleaners from brands like Drano ... During our lab testing, we found the Green Gobbler Main Line Opener performed best at clearing clogs.

French drains are typically covered with pea gravel and a fabric filter to prevent dirt from clogging the drain line. They are also called trench drains, perimeter drains or curtain drains.

Using only one household item, HomeTips4You shows how to "Clear out all the gunk and the funk within that AC drain line" ...