A few years ago, we wrote about a 'fatberg' that clogged a sewer system in London. Now there is another one wreaking havoc, "one of the largest to form in the London sewer system", according to NPR, and "weighing roughly the same as 11 double-decker buses".

So, what caused this fatberg? People flushing wet wipes, paper towels and sanitary products down the toilet and dumping cooking oil and fat down the drain. This serves as a very real reminder that those items must stay out of our water and wastewater systems because they do cause a lot of damage. Don’t dump them, trash them instead!

Last spring, Halifax Water in Nova Scotia (Canada) created a clever video about why fats, oil and grease (FOG) don’t go down the drain and what it looks like when it gets into our systems.

Review our Caring For Pipes webpage for ideas on how to care for your own home's pipes.