Is there regular maintenance that can be done to help maintain clean kitchen drain lines?
In this case, there is a disposal, but only used for residue as most everything goes into the trash. Nothing bad (like grease) is ever put down the drain. But ever year or two, the 2" lines fill with looks like crisco! Arteriosclerosis!
Is it worth it to put liquid drain cleaner or something like that down there once a month to be proactive about clogged drains?