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How to Fix Loud or Broken Fill Valve

Noisy toilet? There is nothing more embarrassing than flushing your toilet to hear a squeal or loud noise from your fill valve. If you can hear your noisy toilet flushing from any other room than the bathroom, it's time to upgrade to a quiet fill valve. 

Choose from the following options: 

  1. Learn how to fix your toilet fill valve - Video and step-by-step instructions below.
  2. Click find part to find the correct replacement fill valve for your toilet.
  3. If this doesn't quite describe your toilet issue, choose from the other common troubleshooting topics.

Does this describe your toilet issue?

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Step 1

Check out the video to learn how to fix you loud or broken fill valve.

Step 2

Video didn't help? Check out the step-by-step instructions below.

Step 3

You can always give our Technical Support team a call too...We are here and happy to help! U.S.A: (262) 763-2434 & outside U.S.A.: (800) 528-3553. Available: Monday through Friday, 7:30 AM to 5:00 PM CST. 

STEP 1: First we have to determine if the water level inside of the toilet tank is rising above and spilling into the top of the flush valve overflow tube.  If the water level rises above the top of the flush valve overflow tube, the fill valve may not be set to the correct height. 

STEP 2: Confirm that  the corner of the fill valve cover lines up with the top of the overflow tube (where the fill valve cover and the black box meet). If the valve is set too high, turn off the water supply and flush the toilet. 

STEP 3: Adjust the height of the valve by twisting the top half of the valve counterclockwise and push down on the valve until the corner of the fill valve cover lines up with the top of the flush valve. 

STEP 4: Turn the top of the valve clockwise to lock it in place. If the fill valve is still hissing and the water level is still rising and spilling into the overflow tube the fill valve may need to be serviced. Check out our service video here.

STEP 5: If the water level is not rising above the top of the flush valve overflow tube, and the valve is running or hissing, a leaky flapper is likely the cause of the running valve. Need a new flapper? Start your search: here.

STEP 6: To test for a leaky flapper, turn the water supply off and mark the water level in the tank with a pencil. 

STEP 7: Leave the water supply line shut off for at least 30 minutes. If the water level drops below the pencil mark there is a leak in your tank and is an indication that the flapper may not be sealing properly.  

STEP 8: Leave the water off for a couple hours and see where the water level drops to. If the water level drops to the flapper, your flapper is leaking and needs to be replaced. If it drops to a point on your overflow tube or your tank drained completely, your flush valve needs to be replaced.

STEP 9: If this didn't solve your running toilet issue, maybe it's time to service your fill valve. This is a quick disassemble of the fill valve, without removing it from your toilet and cleaning it out to ensure it works properly. Check out how: here.