A 12" supply tube is usually long enough.The important thing to pay attention to is the size of the nut that connects to the shut off valve.It is usually 3/8" but older galvanized plumbing systems could be 1/2". Moving the nut in any direction is progress. just unscrew the big hex nut and the valve will come loose.. Edited 1 times. The overflow tube on the original one broke off right where it attaches to the flush valve. Turn off the water supply at the house meter. You might not have to. Remove the fill valve. Locate the coupling nut on the underside of the toilet tank. Be careful, that stuff is flammable. Then finish loosening the nut with your fingers. This is just to make it easier to work on, and is not required. Source(s): carpenter/handyman. Tighten the nut. This method can sometimes loosen the lock instantly and allow you to manually unscrew it. 3. Wipe off any remaining residues with a rag. Otherwise you can use a wrench to loosen the lock, breaking off any rust that has accumulated therein. Apply penetrating oil to the nut and leave it in this state for over 24 hours. Tap with a hammer. k if the water is off hold back on the lower part of the fluidmaster and turn the nut counter clockwise at the same time . Then use oil and a hammer to loosen. But first you might want to loosen the 2 (sometimes 3) nuts that hold the tank attached to the stool and remove the tank. It is OK to cut through the old fill valve as it is being replaced anyway. Use a wire brush to loosen the mineral deposits around the nut. they are kohler's version of gaskets for the tank to bowl bolts. 1. Poor design. Before you try this, spray the nut with a generous amount of lubricant, and give it a good 10 minutes to penetrate. The traditional grease-and-wrench approach to opening a stuck shut off valve is basically a matter of trial and error. Loosen the nut that secures the fill valve to the water supply line by turning it counterclockwise with pliers or a wrench. Like removing a bolt. A lock nut will not loosen, even under intense vibrations. Tap the end of the bolt a half-dozen times with a hammer to help loosen the threads and allow the oil to penetrate. 4. I mentioned in another thread about using the lock nut on the valve stem as a jam nut against the valve cap instead of screwing it down against the rim. Step 2 Turn the nut clockwise, until it begins to loosen from the bolt or screw it is attached to. Beneath the tank, loosen the lock nut that holds the fill valve to the tank. Very very carefully. You have a shower socket set? Remember to twist counter clockwise. www.bobsplumbingvideos.com/removing-a-frozen-fill-valve-nut Push it firmly onto the nut. Then, spray down the stuck valve with penetrating oil. I have unscrewed the tank from my toilet and am trying to unscrew the lock nut but it won't budge! Hopefully it will loosen the nut… If the nut is tight to the tank, you may be able to loosen the valve from the nut by twisting the whole assembly itself. Then, carefully pull the supply line out of the valve underneath the tank. Loosen the nut that secures the fill valve to the water supply line by turning it counterclockwise with pliers or a wrench. Jarring the nut can break its bond to the bolt. Easy way to go about it. Ordinary chrome sockets can't handle impact work … After leaving it soaked in penetrating oil for a day, try to loosen the nut with a wrench. Remove the old fill valve. Source(s): carpenter/handyman. Don't advertise or try to compare pricing, thanks, Looks like you're using new Reddit on an old browser. The packing nut of the valve, also called the bonnet nut, is unscrewed to loosen the shutoff valve knob and make it easier to turn. All else fails, very carefully hold a hacksaw blade inyour hand and cut the nut. recommendation. I scrubbed the nut under the toilet with a wire brush and WD-40. The new fill valve will go on similar to how the old one came off. Give 4-5 sharp tugs and see if the bolt moves. How do I remove this lock nut connecting to the fill valve? Tighten the fixture or plumbing nut with a wrench or locking pliers to break the grip of the mineral deposits; then turn in the opposite direction to loosen it. Sometimes loosening a stuck brass fitting is as easy as turning the locknut counterclockwise to tighten it further and then turning clockwise to loosen. Insert the end of your box-end wrench into a hollow metal bar. 2. Be careful though, as both these methods can damage your faucet. I have done this before and always seem to have a problem. Hook the wrench onto the bolt and grasp the nut with a pair of large pliers. Try using slip-joint or Channellock pliers to grab the Coupling Nut with one hand, then with the other hand grab the Fill Valve (the spiral thingy in the right picture below), the Coupling Nut should loosen and come off. I am trying to replace the valves inside the toilet tank. Rock The Bolt: This is another one to try early in the process, and in-conjunction with other methods.Using a ratchet and socket, slowly work the bolt or nut back and forth. Remove the lock nut by turning it with your pliers. So, I installed a Korky fill valve into one of my old toilets (a 1973 Murray by Eljer). Then try to loosen it using a correctly sized wrench. Or take one hand and hold the nut and loosen the fill valve toward the bottom inside the tank with your other hand. Raise the pipeline from the overflow tube. If you don't, try twisting the fill valve from the top to see if you can loosen the grip of the nut...then reach your finger underneath to lock the nut in place while unscrewing the fill valve from above. Step 2 - Remove the Valve. Conclusion Empty the bucket and place it underneath the water supply line. Use a pair of pliers to just loosen the coupling nut. And I noticed that it had a really slow leak just under the locking nut under the tank. Hopefully it will loosen … The metal shutoff valve connects to a PVC feed pipe. They are different on each side, making them very difficult to get off. Then try to loosen it using a correctly sized wrench. Use a wire brush to loosen the mineral deposits around the nut. Cut in two places. Detach the toilet fill valve. Put a wrench on the fixture or nut and strike the handle sharply with a hammer to loosen the fixture. just unscrew the big hex nut and the valve will come loose.. Edited 1 times. Moving the nut in any direction is progress. To make sure you hit the nut itself and not the surrounding threads, place a center punch on the nut and strike the punch with a hammer. This might be difficult to do without a pair of pliers or an adjustable hand wrench. Wipe off any remaining residues with a rag. As you unscrew the nut, a bit of water may drip out of the tank. Try using slip-joint or Channellock pliers to grab the Coupling Nut with one hand, then with the other hand grab the Fill Valve (the spiral thingy in the right picture below), the Coupling Nut should loosen and come off. Maybe, try to grip the valve on the inside of the tank. Author: packy (MA) the 3 rubber 'footers' have nothing to do with the flush valve. Why would you set the damn nut up in the tank? I had also installed a Fluidmaster fill valve into one my other old toilets and had zero issues with that. Brass fittings, primary used on hot or cold water lines to connect one piece of pipe to another, become stuck due to corrosion or over-tightening. Hello gigilinn and welcome to the community! Many bolts are brass, so they can easily be cut with a hacksaw. Once you’ve sprayed the valve, grip the valve with a plumber’s wrench, and use a rubber mallet or a ham… Tap the end of the bolt a half-dozen times with a hammer to help loosen the threads and allow the oil to penetrate. Press question mark to learn the rest of the keyboard shortcuts. The end of the water … They're thin walled sockets for reaching into walls and removing nuts like these. Tap with a hammer. Disconnect the water supply tube or hose that connects the water supply valve to the fill valve. Position the new valve in place of the faulty one. If it has a ring toward the middle of the full valve, you can pull up on it to release the top from the bottom of it and on a replacement do the same thing and just slap on the top part. Re: How to remove lock nut on bottom of flush valve? 1. Remember to twist counter clockwise. Apply heat. If this doesn't work, it's on to plan B, which is to cut the nut off. Jarring the nut can break its bond to the bolt. Step 3 - Replace the Valve. 0 0. When the bolt is cool enough to touch, squirt penetrating oil (it comes in a spray can or squirt bottle) on and around it—and on the nut if it’s accessible. Hold the nut in position and pull on the end of the wrench. Then I clipped a vice grips to the fill valve base inside the toilet. You will have to hold the inside piece with your hand while applying the pliers to the underside nut. Re: How to remove lock nut on bottom of flush valve? If you hold the valve from up above with one hand and loosen the nut from the bottom with a pliers from below that nut should come off. Also loosen the nut that holds the fill valve in place. Then, carefully pull the supply line out of the valve underneath the tank. Lock nuts come in various sizes for many different applications and are most often used by mechanics and engineers to hold wheels in place. "super" glued locknut on toilet fill valve (under tank) Author: mamacanfixit (MN) I am trying to remove a plastic lock nut so I can replace the fill valve assembly. Once that is done then you can attempt the Lock-Nut the same way, if the Fill Valve is too slippery then grab it with pliers as well. This time I cannot remove the two plastic nuts under the tank, holding the metal intake tube to the tank and the valve. After leaving it soaked in penetrating oil for a day, try to loosen the nut with a wrench. The valve is connected to a rubber ball float. As you unscrew the nut, a bit of water may drip out of the tank. Gently pull the nut down. There's probably some minerals in there, but I suspect the original installer used some serious torque to ensure it wouldn't leak. I can't figure out a way to secure the valve and leverage against that to loosen the nut. You can drive it off with a flat blade screwdriver. I am trying to replace the flush valve in my toilet. This is just to make it easier to work on, and is not required. Remove the nut, washer and lock nut. Your email address will not be published. some tiomes the nut can get cross threded and wont budge i have found that a short drill and drill bit will be needed to remove the ballcock you would have to start by drilling the nut in a few places to break it off This nut is a coupling that connects the supply line to the fill valve. The nut holding the supply line to the shutoff valve won't budge. The valve is trash anyway, so you cut the nuts off. Bathtub Drain Stopper / Trip Waste Assembly. Use your pliers to loosen the nut under the tank. It has unusually low viscosity, which allows it to penetrate very tight spaces easily. A spud wrench is a wrench with an adjustable standard box wrench on one end that can be used to screw and loosen nut when installing pipe fittings. Good luck Once that is done then you can attempt the Lock-Nut the same way, if the Fill Valve is too slippery then grab it with pliers as well. For larger nuts and bolts, you'll need an impact gun and a set of six-point, impact-rated (black finish) sockets. Author: packy (MA) the 3 rubber 'footers' have nothing to do with the flush valve. Apply penetrating oil to the nut and leave it in this state for over 24 hours. Cut if off I can’t replace my fill valve until I can loosen it. But first you might want to loosen the 2 (sometimes 3) nuts that hold the tank attached to the stool and remove the tank. Start by turning off the main water shut off valve to the house. 2. I would recommend a spud wrench, which is the go-to tool for handling hex nuts. It is OK to cut through the old fill valve as it is being replaced anyway. Web Design & Marketing by Urmil Patel. Penetrating oil is a special type of grease sold at home improvement centers and hardware stores. Apply heat. Hello! Once those two steps were done, I was able to unscrew the screw under the toilet for the fill valve attachment without any further trouble. To make sure you hit the nut itself and not the surrounding threads, place a center punch on the nut and strike the punch with a hammer. Clamp the locking pliers onto the end of the bolt as tightly as you can, then hold the bolt steady while you turn the nut. Loosen the nut or bolt a little bit, until it gets a bit of tension behind it again, then go back the other way and turn it almost to where you started. I hate that some asshole came up with that. If this locking nut is not secure it can loosen and allow the stem nut to move axially to the point that the splines are disengaged; resulting in a loss of drive to the valve stem. The site may not work properly if you don't, If you do not update your browser, we suggest you visit, Press J to jump to the feed. An impact driver and a set of high-end hex-shaft nut drivers are all you need to loosen small nuts and bolts. But this time it might have saved me from ripping a stem out of a tube so I thought it was worth a … Hello gigilinn and welcome to the community! Then use oil and a hammer to loosen. Be careful, that stuff is flammable. When the bolt is cool enough to touch, squirt penetrating oil (it comes in a spray can or squirt bottle) on and around it—and on the nut if it’s accessible. A utility knife or a hot utility knife should cut the nuts off easily. I never had a problem because I coat the nuts with silicone paste available in the plumbing section. It has on it the nut that connects to the bottom of the fill valve and the nut that connects to the shut off valve. It will come loose. Attach the socket to the wrench and place it over the lock nut. 2. Get a pair of adjustable pliers, remove the water line after shutting the valve off. 3. 0 0. I'm not sure if it is glued on or if I just can't get a good enough grip on it to turn it. Tighten the nut. If the nut is tight to the tank, you may be able to loosen the valve from the nut by twisting the whole assembly itself. One of the most reliable ways of loosening a tight lock nut is by hammering it. On an all plastic set up, this should not be necassary. 1. they are kohler's version of gaskets for the tank to bowl bolts. Like removing a bolt. Maybe, try to grip the valve on the inside of the tank. Loosen the bolt with an extended wrench. After breaking the "fins" off the nut while using wrench I tried holding the nut and turning the part in the tank.