Fortunately, repairing this common plumbing issue is often a straightforward diy task that can save you money and prevent further complications Is probably occurring around the water valve stem Turn off the house water main before taking apart the toilet shutoff valve
How to fix a leaking shutoff valve – Artofit
Properly sized replacement washers for the shutoff valve are available from plumbing supply houses and better hardware stores that stock a large inventory of repair parts
If this step doesn't stop the leak, you'll need to replace the whole valve.
This old house plumbing and heating expert richard trethewey shows how to quickly, easily fix a faulty valve (see below for a shopping list and tools.) To fix a dripping/leaking shut off valve, use an adjustable wrench to tighten the packing nut which will compress the washer and stop the leak If that does not work, loosen the packing nut and wrap teflon packing around the valve's bonnet threads.
To fix a leaky shut off valve, there are a few steps you can follow First, turn off the water supply to the valve by locating the main water shutoff valve for your home and closing it. Therefore, how do you fix a leaking shut off valve You can fix a leaking shutoff valve in three simple steps before you decide to replace it
First, you can use a wrench to tighten a packing nut
And if that doesn't work, you can try replacing the packing material or the washer. The problem usually goes away if you tighten the knob a little, but sometimes you may have to reassemble the whole thing.