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That invisible toilet shut - off valve does n’t see much military action . In fact , that valve may sit for days without ever being close . That ’s not a dear thing . After going idle for so long , the valve ’s pencil eraser washer commence to dry out rot so that when you finally give it a turn , it leaks . And since the valve is usually only closed when the toilette is n’t bring , a leaking keep out - off valve often adds insult to a repair that ’s already in progress .

This templet excuse how to replace a john shut - off valve , and get your porcelain throne back in service as shortly as possible .

Person’s hand turns the handle on the toilet shut-off valve.

Photo: iStock

Tools & Materials

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Before You Begin

You need to assess the type of plumbing you have before starting a toilet shut - off valve surrogate .

Finally , keep in creative thinker that once you commence the process of replacing a lavatory shut - off valve , your home base will be without water until you nail the repair . Make certain you have all thenecessary plumbing toolsand supplies before you start , so you could finish the repair as quick as potential and turn your H2O back on again .

How to Replace a Toilet Shut-Off Valve

Step 1: Cut the water supply to the house.

The water supply master shut - off valvein a abode is ordinarily settle in the cellar , but may be get in various other location , including the wash room , under the kitchen sink , or in a chamber closet . Once you ’ve institute it , tighten up the valve to shut off the body of water .

Step 2: Drain the water lines.

Before you transfer the crapper close - off valve , you ’ll want to enfeeble the supply line to prevent the water remaining in the pipe from gushing out onto your can floor . spread a spigot that is below the level of the toilet valve you ’re replacing . This footfall provide surplus pee to drain out of the water lines above it , including the pipe that supply your toilet with pee .

Step 3: Disconnect the supply line.

The toilet supply line is the flexile metal hosiery that run from the toilette to the valve . Place a diminished bucket on the floor under the valve to charm any excess urine that escapes from the line before you murder it . employ a crescent twist to remove the bolt of lightning that link the supply business to the valve . Then disconnect the line from the valve .

Step 4: Remove the old toilet shut-off valve.

The process for remove the pot valve varies depend on the type of connecter :

Step 5: Install the new shut-off valve.

If you ’re establish the fresh valve to a copper pipe , use a deburring tool to remove the sharp sharpness created when you cut it . Push the dick into the pipe firmly and turn a few revolution until the bound is smooth . Skip this gradation if you ’re go with a PVC pipe .

Next , slide the concretion egg onto the cop or PVC pipage with the threads face towards you . Then advertise the compressing anchor ring onto the tube . slip the newfangled valve over the tube until it stops , see to it the valve ’s outlet is correctly oriented upward to welcome the gutter ’s supply lineage .

Hand - tighten the compression nut onto the threading of the novel valve ’s input signal . Then habituate two crescent wrenches , one to hold the valve body in place and the other to engage the nut , to constrain the ball another half turn .

Woman turns the handle on the main water shut off valve for her home.

Photo: Jenny Stanley for Bob Vila

Tried-and-True Advice

“ When I replaced a toilette shut - off valve in my older home , I struggled with loosening the compression nut due to year of buildup and erosion . A trick that worked like conjuration was gently heating the nut with a hair drier for a few minutes . The high temperature induce the metal to expand slightly , piddle it much easier to unscrew . Just be careful not to overheat the field , particularly if you ’re act near plastic component , and always wear baseball mitt to protect your hands from any red-hot surfaces . This simple bakshish saved me from damaging the pipe , and reduce frustration . ”

— Paul Rankin , Contributing Writer

Step 6: Attach the toilet supply line.

tie the toilet supply channel to the new shut - off valve . If the provision melody admit a compression nut , you may remove and cast aside the crackpot included with the fresh valve . string the junkie onto the valve production . mitt - stiffen the nut , then use a crescent wrench to tighten up it another half turn .

If you ca n’t get the provision hose to line up with the new valve , you ’ll need to undo the valve testis and reposition it , so it line up with the supply pedigree . verify you adequately tighten all nuts before proceeding to the next footfall .

Step 7: Turn the water supply to the house back on.

launch the pee briny in the house then relax the gutter close - off valve by turn it counterclockwise . As the body of water begin filling the toilet ’s army tank , check for escape around the unexampled valve .

If there is a leak , close off the water supply , empty the lines , and unscrew the valve ’s compression testis . minimal brain dysfunction plumbers tape or pipe fitter putty to the togs on the valve . Reinstall , verify to reduce all densification nut case , and recheck the fitting .

Final Thoughts

Replacing a tattling toilet valve is a haunt that most DIYers can finish in a few short hours . By espouse these mere steps , you may check that your toilet valve replacement will go smoothly , eliminate the offend outflow and permit you to get your can back into servicing .

This project is one that most DIYers can wield , but think back not to bite off more than you could chew . Wrestling with erstwhile rust smoothing iron plumbery is a formula for DIY disaster . you may deal the PVC and pig repairs yourself , but call a plumber for the old stuff .

Everything You Need for a Lush and Healthy Lawn

Woman turns on the water at a bathroom sink faucet.

Photo: Tom Fenenga for Bob Vila

Keeping your grass green and your plants flourish does n’t just take a green pollex — it begin with the veracious tools and supply .

Removing an old toilet shut-off valve.

Photo: iStock

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