Ten Things That Shouldn't Go Down The Drain
Time magazine tells us of things that shouldn't be disposed of by pouring, or putting, them down the drain. I didn't see anything we put down the drain, but it's especially important in our house and the kitchen drain is naturally slow due to its old fashioned design and a pipe below the sink that is almost level for a couple feet causing slow drainage in even the best of times.
Apologies for the Time magazine web page. As with pretty much all magazine web sites, it's poorly designed, slow to load and often difficult to read.