How to Adjust the float cup/ball height in your toilet tank to save water
Trim down your water bill and do the planet a favor by adjusting the water height in your toilet tank. The Fluidmaster's float cup on the fill valve can easily be adjusted to set water height in the cistern, just by fine-tuning the water level adjustment clip. This process is very similar for regular fill valves, too, with float balls instead of float cups. All you need to do is hit the sweet spot—the lowest water height needed to properly flush the toilet.