Introduction

A running toilet is more than an annoying background noise it can waste hundreds of gallons of water daily and quietly spike your water bill. Fortunately, you don't always need an emergency service call to fix it. Most running toilets are caused by simple tank component issues that you can resolve in under 10 minutes.

1. Inspect the Flapper Valve

The rubber flapper at the bottom of your tank creates the seal that holds water in place until you flush. Over time, mineral deposits or chemical buildup degrade the rubber, preventing a tight seal.

• Turn off the water shut off valve behind the toilet and flush to drain the tank.

• Inspect the rubber flapper for cracks, stiffness, or warping.

• Unhook the old flapper from the chain and snap a universal replacement into place.

• Adjust the chain so there is roughly half an inch of slack when the flapper is fully closed.

2. Adjust the Tank Water Level

If water continuously spills over the top of the central overflow tube, your fill valve float is set too high.

• For float cups: Slide the metal or plastic locking clip on the vertical valve body downward to lower the water fill level.

• For float balls: Turn the adjustment screw on top of the fill valve counterclockwise with a screwdriver.

• Aim for the water level to sit approximately 1 inch below the top of the overflow pipe.

3. Position the Refill Tube

The small plastic tube connecting the main fill valve to the hollow overflow pipe directs water into the bowl after a flush. If this tube drops below the water line or slips out of place, it creates a constant siphon effect. Ensure the clip holds the tube firmly above the top rim of the overflow pipe.

When to Call a Professional

If replacing the flapper and lowering the float level doesn't stop the leak, your fill valve assembly or lower flush seat may be cracked.

Contact FreeFlow for quick, expert toilet repairs and hardware installations.