All Guides

There are several types of toilet flush systems in use today — gravity, pressure-assisted, dual flush, siphonic, washdown, and tankless — and knowing which is which helps you troubleshoot, buy the right parts, or pick a better toilet during a remodel. This guide explains how each one actually works, decodes confusing brand marketing names like Class 5 and Tornado Flush, and breaks down which type fits different real-world situations.