First shut off the water supply and flush the toilet. Remove all the water from the toilet cistern. Using a spanner and some grips, loosen the nut holding the water supply and remove. Remove the next nut up and remove the old valve. How to Replace Toilet Fill Valve in 8 Steps Turn off the water supply. Take off the lid of the tank. Flush the toilet. Unscrew the water hose from the tank. Remove the existing fill valve. Adjust the height of the new fill valve. Install the new valve. Reattach the water supply hose. Float-Cup Fill Valve This is now the most common type of fill valve, found in most toilets you see. It is easy to install, dependable, and universal since most styles can be easily adjusted for heights anywhere between 7 and 13 inches, depending on which brand you buy. If the toilet still proceeds to not fill properly from readjusting the float ball, then the problem may be resolved by adjusting the fill valves. If your toilet's fill valves use float arms, then the fix is to start by removing the toilet cap lid and locate the fill valve in the tank, it should be on the left side. The fill valves work as follows: there's a small hole in the diaphragm through which water flows under a slight pressure. There is a second hole in the body of the valve through which the water leaks into the cistern when open. This hole is closed off when the water gets to the required level.
Toilet tank won't fill up or is slow to fill. The most common reasons for a valve to slow down or no longer fill the tank after the flush are debris issues and the length of time a valve has been in use. Valves in use for a period of 7 years or more can have their working parts start to wear out.
Having a plumber or a handyman replace failing toilet parts like a fill valve or flapper can cost $50-$150 or more, depending on local rates and the worker's qualifications. Replacing a shutoff valve typically costs $25-$50 and replacing a wax ring (and possibly also the closet flange) might cost $50-$200.
Fixing a toilet fill valve (sometimes known generically as a ballcock) is relatively easy to repair if you happen to have a Fluidmaster brand valve. Often, repairing a fill valve is done by simply replacing the entire fill valve, but Fluidmaster fill valves can be repaired by just replacing a seal inside the unit.
The toilet in your home has several tank components, but there are only two tank valves at work every time you flush the toilet: the flush valve, which releases the water stored in the tank down into the toilet bowl when you press the flush lever; and the fill valve (also traditionally known as a ballcock), which
5 Signs You Need A New Toilet There are cracks in your tank. If you frequently see a puddle of water around your toilet, this could be more than a simple leak: You could have cracks in your tank, and the toilet may need to be replaced. You have an old toilet. You feel it wobble. You've had to fix it often. You have a round bowl.
There is only one place that a toilet fill valve can leak and that is at the fitting that connects it to the tank. See the information below for instructions on locating it and tightening it. A fill valve that is allowing water to run over the top of the fill tube and down into the tank is not really a leak.