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Guide to Fixing a Leaky Toilet Shutoff Valve

Guide to Fixing a Leaky Toilet Shutoff Valve
Last Updated: 21 August 2019

A leak is the most common problem in your toilet shut-off clack. When you have an issue, it can leave your bathroom wet with a puddle of liquid. This can lead to ruined floors, makes your bathroom dirty, cause mildew and mold to grow, ruin all bathroom furniture, and cost you higher utility bill. These leaks are caused by loosening nuts on these poppets. Other reasons can be mineral buildup on these washers.

A toilet shutoff valve leaking does not always mean that it needs replacement. Read on an article to know these simple solutions to an issue instead of engaging in costly repairs.

How to Fix a Leaky Toilet Valve?

Fixing a leaky W.C. clack is easy and inexpensive. If you would like to try your hand at repairing a leak first, follow these strides, and if it does not work, you can have that other option.

First Option: Repairing the Leaky Shut off Valve

Material That You Will Need

  • Joint Compound
  • Channel Lock Pliers or Pipe wrench
  • Open-end crescent wrench
  • Replacement clack, that right size
  • Small plastic container
  • Soft and a clean rag
  • Masking tape
  • Pair of pliers

Way 1. Turn the Water Off

Shut off that main liquid supply in your house.

Way 2. Tightening the Packing Nut

  • In a few cases, that main reason for that leak can be the loosen packing nut the only needs to be tightened.
  • Place a couple of masking tape on each side of these jaws of these pliers. This is to prevent these ridges of these pliers from damaging that nut’s surface.
  • Turn these pliers in a clockwise direction and tighten that nut as much as you can.
  • Check if this solution has fixed your leaky W.C. clack. If this water shut-off valve is still leaking when closed, proceed to stride 3.

Way 3. Disassembling the Valve

In this next stride, you need to disassemble these components of your shut-off clack. You have to do this without disconnecting it from that liquid supply and your W.C. line. Unscrew this handle and remove this threaded clack system, neoprene washer rings, and this packing unit.

Way 4. Cleaning the Washers

Get your clean rag and begin cleaning these washer rings by gently wiping it off. You have to remove any mineral deposits from these washer rings. After cleaning, flex these washer rings to help it retain its flexibility.

Way 5. Reassembling the Valve

Start reassembling your toilet shut off valve. Do not put any putty or pipe dope on these rings as it will make any future replacement or repair difficult.

Way 6. Turn on the Water and Check for Leaks

  • Turn that main liquid supply of your house back on.
  • Watch out for leaks as this liquid reservoir is being filled.
  • If you can still see that your toilet shut off valve leaking, you need to replace that whole shut off clack.

Option 2. Repairing the Valve Stem

Things that You Will Need:

  • Duct tape or masking tape
  • Nylon brush
  • Pliers

Step 1. Look for that main water shut-off clack and turn it “OFF.” You need to open some of these faucets to drain all liquid from these pipes completely.

Step 2. Put your toilet shut off poppet into the “OFF” position.

Step 3. Using these jaws of your pliers, grip that packing nut of that clack and turn it counterclockwise until you loosen it free from a supply pipe. Clean a spilled water using a towel.

Step 4. Remove these washer rings inside that base of a cutoff clack with your fingers.

Step 5. Put that washer under warm water and clean its surface using a nylon brush and your fingers to remove these mineral deposits.

Step 6. Renew that elasticity of your rubber washer by flexing it a little.

Step 7. Return that washer at its base of your shut-off clack and place that poppet back on top of your supply clack.

Step 8. Tighten that packing nut by turning it clockwise. Turn water line on and then your toilet shut-off clack.

Note: If that cleaning and flexing do not solve your toilet shut-off clack leak, you need to replace your washer with a new one.

Replacing the Toilet Shut off Valve

Step 1. Shutting the Water Off

  • Turn off that main water supply.

Step 2. Removing the Old Poppet

  • Using that appropriate wrench, disengage, and remove that old poppet.
  • Use that second wrench to hold your pipe in place and avoid twisting.

Step 3. Connecting the New Poppet

  • Take your pipe threads and apply a joint compound on these pipes.
  • Connect this new poppet and tighten it with a wrench.
  • Make sure that a new poppet is aligned with that supply line.
  • Turn off a drain that is opened and reconnect that water supply line.

Step 4. Turning the Water Back On

  • Turn back the water supply and check if there are any leaks on the toilet shut-off poppet.
  • If none, you have done it right.

Option 3. Tightening the Water Supply Line of the Shut off Valve

If the toilet water shut off valve is not working, sometimes the problem lies on the inlet coming from the toilet line of the shut-off poppet. You can solve this by tightening this inlet.

Here Are the Materials You Need:

  • Masking tape
  • Teflon Tape or Plumber’s Tape
  • Wrench
  • Screwdriver
  • Plier

Follow These Strides to Fix Your Toilet Shutoff Valve Leaking Problem

  • You can start repairing a leak by disconnecting a water line from the shut- off poppet.
  • Using a plier or a wrench loosen the nut at the other opposite of a poppet. This is one that has a connection to a liquid supply line.
  • With a clean cloth, dry a pipe.
  • Using the Teflon tape, wrap pipe threads of the waterline.
  • Make sure that a Teflon tape has at the minimum, two whole turns to make sure that there is better fitting.
  • Cut the Teflon tape with a scissor and smoothen a taped pipe ends using your fingers.
  • Return the taped pipe into the slot and make the toilet shut-off poppet tight.
  • Turn the liquid back on and check if there is any more leak.
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