Why Are People Pouring Dish Soap Into Their Toilet at Night? Let's Break It Down...

A bottle from the kitchen sink

Most home hacks you see online fall into two groups: the ones that do nothing, and the ones that sound clever but cause a new problem. So when people started talking about squeezing dish soap into the toilet before bed, it is easy to roll your eyes. Dish soap belongs at the kitchen sink. What could it possibly do in a toilet bowl?

Quite a lot, it turns out, as long as you know what it can and cannot do. Plumbers have suggested a version of this trick for years for one specific problem: the slow, sluggish toilet that is partly clogged but not completely blocked. You flush, the water rises higher than it should, then slowly sinks away. Before you reach for a harsh chemical drain cleaner, or pay someone to come out, there is a gentle first step that uses two things every home already has: dish soap and hot water from the tap.

Why at night? Because the trick works best when it has time, and nobody uses the bathroom while you sleep. You set it up before bed, let it work for hours, and flush in the morning. But there is a right way and a wrong way to do it, and the wrong way can crack your toilet. On the next page, we break down exactly how it works, step by step.