10 Shocking Parts of a WC You Never Thought About!

Tue, 05 May 2026 10:50:41 +0000

10 Shocking Parts of a Toilet You Never Thought About – And Why You Should Care When most people think about their toilet, they focus only on bowl, seat, and flush. But behind every flush lies a hidden world — a complex system of plumbing, hidden valves, and unexpected components that keep your bathroom working smoothly. Here are 10 shocking parts of a toilet you never knew existed — and why they matter. --- ### 1. The Manhole Flap (Node Ventelflap)
Located beneath the toilet bowl’s rim, this tiny rubber seal prevents sewer gases from rising through the drain. Surprisingly hidden yet critical, a failing node flap can lead to bad smells and testing safety issues. It’s small, but vital.