What is the greatest invention of the past 200 years? The car, antibiotics, baseball? How about indoor plumbing? Just think of it, you flush and it’s out of sight and out of mind.

But for wastewater experts, items labelled “flushable,” such as wipes, toilet sponges, and even thick toilet paper, are a big headache as they clog aging sewer pipes. Barry Orr, sewer outreach and control inspector for the City of London joins Steve Paikin to discuss why he believes people need to think more about what they send down the loo.

Watch this interesting video on why people need to think more about what they flush down the toilet.

Photo credit: Internet Archive Book Images via Foter.com