3532 Fluidmaster Leak Detector Tablets The Fluidmaster 3532 Leak Detection Tablets offer a simple solution to leak detection. Not sure where your toilet leak is located? No problem, with this easy to use toilet tablet. Simply drop in the tablets and allow the water to change color. Then easily spot the colored water against your toilet. Now that you've found the source simply flush the colored water and fix the problem. These toilet tablets won't do any harm to your toilet, or parts.Diagnose problems fast with leak detection tabletsEasy to use, simply drop in and look for leaksTablets color enables quick leak point detectionFlush to clear colored water for repairs