Learn more | https://www.korky.com/toilet-repair-help/loud-or-broken-fill-valve Hello and Welcome to Korky toilet repair. Here are some quick helpful tips if your Korky QuietFILL valve it is not filling the tank, or is filling slower than normal. First, ensure that the water supply valve is turned completely open and that the supply line is free of kinks. If the supply line was kinked or if it was necessary to turn the water supply open, flush the toilet to observe the water flow. If this was not the problem turn the water supply off. Pinch the refill tube and cover together like this. This is to ensure the cap on the valve is completely tightened. After pinching, turn the water supply on and flush to see if the valve is working properly. If this does not improve water flow, turn the water supply off and flush to empty the tank. Make sure to hold the valve firmly through all steps so it does not get turned out of the locked position. Next remove the refill tube; you may need to twist slightly. To remove the valve cover, place your thumb under the tab and lift up. Remove the float by gently pinching the float arms together. Hold the valve body with one hand and twist the cap counter-clockwise 1/8 turn to remove. Now remove the supply tube from the valve. Pull the white strainer from the bottom of the supply tube. Rinse the strainer under warm water to remove any sediment. Now, insert the strainer back into the supply tube and insert the supply tube back into the valve body. Twist the cap assembly clockwise to lock it onto the fill valve. To reattach the float, pinch the float arms in and clip them to the valve body. Tap the float arm to ensure the float is moving freely and that the arms are securely latched onto the cap assembly. Snap the valve cover back into place. Put the refill tube back on and pinch the refill tube and the cover to make sure the cap is completely tightened. Make sure the valve is locked into place by turning it clockwise. Turn the water supply on to test water flow. If cleaning the strainer does not solve the problem and you have a flexible water supply line, turn the water supply off. Disconnect the supply line from the toilet fill valve and place the end into a bucket. Slowly turn the water supply line on. If there is still little to no water flow, there is likely a restriction in the water supply line or a problem with the incoming water supply. If you have any questions or need further assistance, please visit our website or call us at 1 800 528 3553.