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Fix Kitchen Sink Leak

Your Best Guide to Fix the Kitchen Sink Leak Like a Pro

To fix a kitchen sink leak, you need not be a master plumber, but a fair idea of using hardware items and tools would definitely help. Scroll down to know more about this 'leaky' state of affairs.
Medha Godbole
Last Updated: Dec 09, 2017
Wow! One fine day you get up, go to the kitchen in the morning and you get a wet feeling near the sink. You look down and there is a mini lake ( okay sorry for the exaggeration!), no mini puddle at your feet. You investigate and the last thing you want to know is that your kitchen sink is leaking. No way! Perhaps it is because of the wear and tear of the drainage system. What have we got then ? You have 2 options - either fix it yourself or call a person who is an expert in plumbing work. Personally, I would say that try to do it yourself, it will be fun and you would also prevent your pockets from getting lighter. So what do you say? Do we fix this kitchen sink leak, because it is a major part of kitchen cleaning!
How to Fix Kitchen Sink Leak?
Tools Required
Here is a list of things you would need.
  • Wrench
  • Chisel
  • Rag
  • Plumber's putty
  • Strainer
  • Strainer's nut (optional)
  • Drain tailpiece (optional)
  • In the storage area beneath your sink, there would be an attachment nut. Loosen it with the help of a wrench.
  • The nut is located near the strainer, holding the drain tail piece onto the strainer.
  • Take off the drain tail piece.
  • Unscrew a large nut, which is the strainer's nut and remove it as well.
  • After you remove the strainer, it would not be a bad idea to replace it, even if it is not the culprit for the leak. This is more so if it is damaged or rusty.
  • At the top of the strainer's hole, in the sink, there will be hardened plumber's putty. Chisel it away and get rid of every bit of this putty.
  • This is because the cracks in that putty may be creating a problem.
  • Using a dry rag, wipe the surface of the sink in, at the spot of the strainer. Allow it to dry totally before you go ahead to the next step.
  • Now at the spot, the recessed lip of the sink - the place where you would install the new strainer - apply a bead of plumber's putty.
  • Insert the replacement strainer in the sink, pushing it down the recessed lip.
  • After you have pushed the new strainer in the recessed lip, ensure that it fits properly in the plumber's putty. This will create a leak proof, airtight seal.
  • Now just as you removed the nut holding the strainer, fix it again and do the same thing with the drain tail piece.
  • In case these two seem to be giving away, change them with the new ones while you have got these components apart.
  • One last thing to remember here is that before the putty dries completely, don't run the water in the sink.
Okay, fixing kitchen sink leak seemed easy? Let's get a bit more adventurous.
Repair Kitchen Sink Drain
  • First thing you need to do is drain the sink of all the residual water. This will reduce the possibility of dripping.
  • Keep a bucket or a catch pan beneath the drain to collect water if at all it drips.
  • Check the slip joint nuts to see if they are adequately tight.
  • Unscrew the nut and the other one, at the end of the p-trap and keep them aside.
  • You may find that there is still some water in that p-trap, so drain it in the bucket or the pan.
  • See if the pipe ends, nuts and washers are in good shape, without cracks and any kind of damage.
  • Check the sink pipe and pipe leading to the wall as well for damage or deterioration.
  • Change the p-trap in the advent of any problem you may find in it or if the need be any other parts.
  • While you fix the leak in the kitchen sink, if at all you find there is no problem, fix the slip joint nuts and washers as well as refasten the ends of the pipes.
  • Once you are done with all this, run the water for a couple of minutes to reaffirm if the joints are fine. Mostly, there would not be any problem.
  • Change the p-trap and the allied nuts and washers if the sink still leaks.
Whoa! This was quite a tiring session, wasn't it? However, even if you might be tired, you must be feeling pretty satisfied as you were yourself able to fix the leak!
This is where I say all the best! If you found this information useful, tell this to others too!