Water shut off valves can also leak at various points on the valve.
Main water shut off valve leaking from stem.
Reassemble the shutoff valve turn the main house valve back on and check for leaks.
A water shut off valve leaking can make a mess and waste water.
So if there is a leak at the valve stem it most likely means the valve is not shut off all the way.
The main water shut off valve stops the flow to the entire home from the water meter while other water valve types shut off the water at individual appliances fixtures and faucets.
The first thing you should do to stop the leak is to tighten the packing nut.
Is probably occurring around the water valve stem.
In all homes you can shut off the water at the main water cut off valve.
If you have a water leak or just need to turn off the water in your home for remodeling or repairs you must turn off your water upstream at some point.
Avoid gumming up the inside of the shutoff valve.
The water valve stem passes through a packing nut and washer which provide a watertight seal.
This turns off water to the entire house even outside spigots.
You may need to shut off water to the entire house if there is no cut off for the line.
For instance a standard stop and waste valve has three other washers that can leak in addition to the washer that shuts the water off.
Place a bucket or a thick towel on the floor under the leaky valve just in case some residual water leaks out during work.
This guide reviews the types of water shut off valves how they are used and where to find them inside and outside your home.
Turn on all the faucets and flush all the toilets associated with the main shutoff valve to empty the pipes of water.
If the valve leak persists turn off the main water shutoff valve then disconnect the valve and replace it.
Required tools for this project.
Locate and shut off water supply to the line that feeds the leaking valve.
When you tighten the packing nut on your main water shut off valve it binds down the packing material against the washer to stop any water from getting through.
In the old days fiber was packed tightly around the stem hence the name.
It s not uncommon for a brand new shut off valve to leak around the handle area whenever you turn it on.
Not sure if this is your problem.
Step 3 remove the screw in the center of the shutoff valve handle using a screwdriver.
Open a faucet to relieve back pressure on water line.
