PIC: And now, just your average sewer blockage longer than a Boeing 747.

Next time you consider flushing wipes or washing cooking grease down your drain, consider you might be contributing to a Boeing 747-size sewer blockage under your city.

It happened in the UK where Thames Water recently spent four days clearing a 262-foot blockage of fat, grease, and disposable wipes from a local sewer. That's more than 20 feet longer than an average Boeing 747 jet.

Our maintenance crews have seen crazy stuff, but never anything close to a mass of this magnitude. Still, the key contributing factors—disposable wipes and cooking grease—are among our top 15 items you shouldn't flush. Just because it can fit down your drain doesn't mean it belongs there.

We say, "Don't use your toilet as a garbage can." In London, they say, "Bin it, don't block it." Even across the pond, sewer smarts are a universal language.