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Sink Plumbing Replacement



So, you have a sink plumbing leakage and you would like to learn how to fix it yourself? That’s no problem. This page was build with you in mind and, I will guide you through easy steps in how to fix the problem yourself.

Such a plumbing is usually pretty standard and it does not matter whether the sink has one or two compartment.

This page will focus on the two compartment kitchen sink plumbing and, once you learn how to repair a two compartment sink plumbing, you won’t have any problem to fix a single compartment one.


Finding The Leak:

In order to quickly resolve a leakage problem, one must first diagnose the source of it. By diagnosing the problem it will save time, frustration and, most importantly, money to whoever is doing the job.

So, what should be done first? Remove all the stuff from under the sink and with a flash light check carefully all the sink plumbing fixtures from the bottom of the sink to where the pipe connects into the wall, also, check the water supply lines that connect to the sink faucet.

If you are having difficulties in finding the source of leakage, turn the water on, this will likely help you identify the problem more quickly.

Possible Sources Of Leakage:

Even though,kitchen sink plumbing is a straight forward system, it can sometimes be a bit challenging to find the real source of the leak but, below are the possible locations that should be checked first:

1 – The sink basket strainer seal might be broken.

2 – The tailpiece between the strainer and the tube p-trap has a gasket that could be broken and the thread coupling might not been tightening all the way.

3 – The tube p-trap might be cracked, or the threads and joints might be damaged.

4 – The washer and slip-joint between the p-trap and the pipe in the wall might be old, rusted, cracked and leaking.

5 – The garbage disposal (if any) might be leaking.

What Is Next?

If any of the above options is the cause of the leakage under the kitchen sink plumbing, you will better off if replacing the whole system for a new one. In this article I will only proving steps in how to replacing the kitchen sink drain plumbing but, I will right another page that will focus in replacing a garbage disposal.

Replacing Basket Strainer:

have a pair of channel locks and a screw driver.

Once the drain pipes are removed you can start removing the basket strainer and, you do that by doing the following steps:

1 – Loosen up the locknut first.

2 – Remove the gasket and washer.

3 – Push up the strainer body.

4 – Clean the sink drain hole really well and remove the entire old plumber putting.

5 – With the new strainer body, put new plumbing putting around the strainer under the edge of it.

6 – Sit the strainer body through the sink drain hole and position it accordingly.

7 – While someone else if holding the strainer in place, you go under the sink and put the new gasket and washer then the new locknut and screw it by hand until you can no longer tight by hand, then use your channel lock to tight some more, do not over tight it.

Installing A New P-trap:

A p-trap has a u-shape form and it is composed of two main pieces u-section and the long tail piece that goes into the wall.

Replacing or installing a p-trap is pretty simple job; however, before installing it, one must first check the angle in how the trap will be when measuring the space between the tailpiece and the pipe in the wall. This means that you might have to cut out a section of the p-trap to make it fit in space available.

Once, you have figured it out how the new p-trap will be installed under the sink, you can go ahead and begin the installation.

1 – Install the new tail piece directly with the basket strainer; make sure that the tailpiece is long enough.

2 – Connect the p-trap u-shape part to the tailpiece and then the other section of the trap to the u-shape and to the wall drain.

3 – Hand tight all the nuts and then use the channel lock to slightly tight all the pieces together.

4 – Run water and check for leaks, if there’s no leak, mission accomplished.

Watch the video that show steps by step how to install the whole thing.

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