The fill valve inside your toilet tank determines the amount of water that will be released during cleaning. If the toilet is not completely discarded, or the toilet is running all the time, the adjustment of the fill valve will be necessary. Larger filling valves have the float that connects to the valve with a metal rod. New fill valves use a float that raises and lowers the axis of the fill valve. Adjusting the fill valve is a matter of repositioning the level of the float. But first of all, you have to get the best toilet fill valve to avoid the hassle of changing it after few days.
Level of difficulty: Moderately Easy
Things you need: Screwdriver, Pliers & Flathead
1 Remove the lid of the toilet tank from the bathroom. Adjust the lid on a flat surface out of the way.
2 Locate the screw that holds the float arm to the fill valve cap, if you have a float. Turn the screw clockwise with a flat-head screwdriver to lift the float if the bathroom is in constant operation. Turn the screw to the left to lower the float to add more water to the tank, if it is not enough to pull the chain completely.
3 Take the float arm near the fill valve with a pair of pliers, if the adjusting screw does not resolve the float level. Turn the arm to the left to remove it from the fill valve. Bend the arm half up or down as necessary, and reinstall the arm in the fill valve. Do not bend the arm to adjust the float while it is connected to the filling valve. Bending the arm while it is installed could cause damage to the fill valve.
4 Locate the clip near the side of the float, if you have a fill valve with the float on the shaft. There is a small metal line that the clip surrounds. Tighten the clamp with your fingers, and move the float up or down as necessary. Release the clip fastener. Put the toilet tank lid back on the toilet.