Replacing your toilet fill valve and flapper with a modern system that has an adjustable flow rate is a great way to start saving water with every flush. The toilet fill valve and flapper, or “guts,” are relatively easy mechanisms to replace. These replacement parts are often bundled together and include instructions printed right on the box that are simple and straightforward. If you can read and use basic hand tools, you can install them yourself.
There are some precautions you’d be wise to take before starting this project—precautions I wish I’d taken before starting my own that fateful September morning.
First though, a word about toilets: Older, inefficient toilets can use as much as three to six gallons per flush. (A newer efficient toilet, by comparison, uses only about 1.6 gallons per flush.) That’s a lot of wasted water, especially when you consider that Texas is in a near perpetual state of drought. Plus, a leaky flapper or a malfunctioning valve could be making your toilet fill over and over throughout the day