Ever heard of a sink drain flange? This component plays an important role in your kitchen or bathroom sink's drain assembly. A leaky sink drain flange needs to be replaced quickly to avoid water damage to your home.
Fortunately, this is an easy repair, even if you don't have much DIY experience. Here’s how to install a sink flange, plus some tips on removing your old flange from the drain hole.
A sink flange connects the sink drain to a section of pipe called a tailpiece to create a tight seal. It is made of metal and sits around the edge of the drain rather like a collar, and it usually has a grid-like section covering the drain that looks like a strainer. The sink drain flange prevents water from leaking out of the plughole when you run the faucet. If it becomes damaged or loose, water can leak into the area under the sink.
Replacing Kitchen Sink Drain
If you're installing a sink drain flange for the first time, start by making a thin sausage shape out of plumber's putty between your hands and place it around the perimeter of the drain opening. The putty should be around 0.25 inches thick.
Next, press the new flange firmly into the hole and follow the manufacturer's instructions for securing it in place. Most new sink drain flanges come with a nut and washer that you'll need to screw on. Start screwing them on by hand, then use pliers until you can't tighten them any further. Before moving onto the next stage, check that the edge of the flange sits flat against the bottom of the sink.
Finally, use a cloth to wipe off any excess putty that's been pushed out from under the seal. You can now attach the bottom of the flange to the tailpiece under the sink.
How To Replace A Bathroom Sink Drain
Before you replace your sink drain flange, you'll need to disconnect the old flange from the tailpiece. You can usually unscrew a plastic tailpiece by hand, but a metal tailpiece needs more elbow grease. Use a wrench to unscrew a metal tailpiece. It's a good idea to switch off the water supply to the faucet before you start working to avoid a nasty surprise if someone unwittingly turns the tap on.
Next, unscrew the large nut holding the sink drain flange in place. If it won't budge, spray it liberally with silicone lubricant and leave it for a few minutes before trying again. If it's still stuck, try tightening the nut before loosening it. This can help break any stubborn rust holding it in place.
Once you've removed the nut, push the flange up firmly from underneath the sink until it pops free of the drain hole. Use a putty knife to scrape away any dried-on plumber's putty before installing a new sink drain flange using the instructions above.
How To Replace A Laundry Sink Drain Pipe
The steps for removing a bathroom sink drain flange are the same as removing a flange from a kitchen sink. However, some bathroom sink drains have a stopper attached. You'll need to unscrew and remove the stopper before you can push the sink flange out of the drain hole.Removing a sink flange to replace or repair it is a reasonably straightforward DIY task that you can accomplish without any expertise. However, residue and rust buildup can often turn an easy plumbing job into a frustrating experience.
Fortunately, there are some simple ways to remove a sink flange, even if it's firmly stuck in the assembly. Use these step-by-step instructions to remove a sink drain flange.
Before you begin, empty everything from underneath the sink and place a cushion or two on the floor for comfort. It's also worth switching off the water supply to the faucet so that you don't get a nasty surprise if someone turns the tap on while you're working under the sink.
How To Replace A Drain In The Bathroom Sink The Right Way
The coupling nut is a large ring-shaped nut that joins the flange basket to the drain pipe. Grasp it firmly with a set of slip-joint pliers and twist it to the left to loosen it. If it doesn't budge, try turning it in the opposite direction. Doing this can break any residue or rust that's jamming the nut, letting you unscrew it more easily. Loosen it until you can remove it from the threads.
Using your slip-joint pliers, twist the locknut between the flange assembly and the bottom of the sink to remove it. If the flange is rusty or caked with residue, this may cause it to spin.
Allowing the flange to spin while you loosen the locknut could lead to damage, so it's important to hold it still while you work. You can do this by inserting the handles of a pair of pliers into two of the holes in the drain basket. Place a screwdriver or other rigid tool between the handles, and ask a helper to hold it in place to stop it from turning.
How To Remove A Sink Drain Flange
Finally, you can use a utility knife to cut away any hardened plumber's putty holding the flange in place and gently pry the flange upwards. Once you've chipped away any putty causing the flange to stick, you should be able to pull it out by hand.
Rust is one of the most common reasons people find it difficult to remove their old sink flange. One of the easiest and most effective ways to break down the rust is to spray the threading thoroughly with silicone lubricant and leave it to soften. The package should tell you how long you need to let it sit. If you still can't loosen it, try tightening the nut instead. While it may sound counterintuitive, this can break the stubborn rust and solve the issue.
If lubricant doesn't work or the issue is compounded by a thick layer of putty holding the flange in place, you may need to apply a bit more force to get it out. Place a block of wood under the sink against the bottom of the flange and hit the wood firmly with a hammer. The sudden force should be enough to break any stubborn rust or putty and loosen the flange.Have you ever needed to know How to Replace a Sink Drain? Or maybe in the past you hired a plumber. Well, I’m here today to tell you that it’s not a hard project and I know you can do it!
How To Replace A Sink Drain P Trap
I think the plumbing Gods smiled down on me recently. After the little leak that turned into a major kitchen renovation, finding this crack in the drain pipe saved us from another costly leak.
I don’t normally inspect the drain pipes on our sinks, but I just happen to be looking for something under my sons’ sink when I noticed the crack on the drain pipe. Remarkably, there were no drips in the vanity. Before I could grab a new drain assembly, I gently hinted to the family that they might want to use another sink in the house. (I’m subtle, aren’t I.)
Reach behind your drain and unscrew the cap around the pop-up ball and rod. Remove them from the drain. (FYI, if you ever have a broken pop-up, you can fix your pop-up stopper with this tutorial.)
Install A Drain Stopper So The Stopper Is Removable
Look under the sink and locate the P-trap. Loosen the slip nuts from the p-trap near the wall and on the drain. (For more details, you can see this tutorial for removing the p-trap.)
Use your pliers to loosen the nut on the drain and remove it. If the nut is stuck, spray a little WD-40 on it and wait about 10-15 minutes.
Insert the flange collar into the top of the sink (I didn’t use plumbers putty under the flange because there was a gasket that fit under the collar, but your directions may call for plumber’s putty. Be sure to follow the directions for your specific drain installation.) The rest of the drain assembly is inserted into the sink through the bottom.
Amazon.com: 3 1/2 Inch Kitchen Sink Drain Assembly Sink Drain Strainer With Stainless Steel Strainer Basket And Drain Stopper Replacement For Standard Kitchen Sink Drain, Stainless
Check underneath for any signs of water. Tighten the nut if you do see any drips. Make sure you have enough teflon tape on the threads.
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