Either one, shut the water off. To replace the valve, disconnect the supply line under the tank where it meets the tank. There is a nut on the bottom of the tank that hold the fill valve on. Take the nut off and the valve lifts out. Get all of the water out of the tank first.
There are a couple of different styles of valves, but they are basically the same. One has a cap on top of the valve and the other one doesn't. The cap pops off and the piece under it twists and comes out. Where the arm from the float attaches. Hold the body of the valve and twist the top piece 1/8th of a turn counter clockwise. It will lift straight up and the seal is under it. About the size of a quarter, black with a small rod in the middle. Lift it out, replace it and reassemble.
It will cost about $60.00 to replace a hot water gasket valve on a boiler. This is if you do it yourself. If you hire a professional, they will charge you for labor and the ending cost will be much more.
First check to see if the valve for the water supply is turned on. If that isn't the problem you may need to replace the tank water valve, they do wear out and are not that expensive or difficult to replace.
Have the new valve in hand. Cut the toilet water supply off at the commode, or even at the street meter box.Remove water tube or pipe supply and old flush valve. Install new valve and new supply line if required.
Refill valve is a very important component in your toilet since it fills the tank of the toilet after every flush. This valve uses a float to turn the water on and off. This is a plumber related work, only a professional plumber can repair it. alliedallcityinc.com
Shut the water off at the main shut off where it comes into the house or at the meter and change the valve at the fixture. The valve at the fixture may be sweated on, compression, or threaded.
If it's leaking between the toilet and the floor, you put the wax ring in wrong. If it's leaking between the toilet and the tank, you need to replace the gasket.
Replace /bulb / flapper /disc and check the over flow tubeA:The kits are inexpensive and come with the float and the flapper assembly.
The cost to replace the water shut of valve varies based on if it is to a sink, toilet, hose, or the entire house as well as the type of pipe used. They can range from twenty dollars to around a hundred dollars.
Shut the water supply off to the toilet. Flush the toilet. Pull the old flapper out and replace it with the same type. Turn the water back on and test the toilet.
Install a tempering valve in water line feeding toilet. Tempering valve will mix hot and cold water together so warm water fills toilet tank which will stop condensation.
Is the small tube from the inlet to the overflow tube in place? Sometimes the gasket in the top of the fill valve will go bad and let it spray out of the top.
shutting off the valve