How to install a kitchen sink Plumbing

How to install a kitchen sink Plumbing

How to install a kitchen sink Plumbing
How to install a kitchen sink Plumbing


01 sink Drain Basics
There aren’t many reasons for changing out the drain pipes under a sink, but one of the foremost common is during a kitchen renovation when the sink is being replaced. The steps for installing the sink drain will depend on how different the new sink is from the old one, also as what other components are being installed. For instance, the new sink may have a special depth than the old one, so some alteration of the branch drain pipe fitting entering the wall could even be necessary.

02 Check the Drain Outlet Height
Deep-basin sinks are very handy and fashionable, but they take up more room beneath the countertop and will require that you lower the drain fitting within the wall. Before you buy a replacement sink, it’s an honest idea to find out the height of the trap arm on the old sink, measuring from the bottom or the bottom of the cupboard.

Measure up to the middle of the trap arm. If the height is 16 inches, you find that a replacement sink won’t leave the specified downward slope for the trap arm, the horizontal piece between the U-shaped trap bend and thus the branch drain pipe within the wall. The trap arm connects to a sanitary tee fitting within the branch drain and can slope down toward the tee (technically, at a slope of about 1/4 per foot) for correct drainage.

03 Lower the Drain, If Necessary
If you discover that the prevailing drain opening isn’t low enough to accommodate the depth of the new sink, you (or a professional) will need to open the wall and lower the position of the sanitary tee connecting to the drain pipe within the wall. This will be a somewhat complicated job that needs cutting away the rear of the cabinet and thus the wall surface.

In our example, the new sink left insufficient room for connecting a typical drain assembly to the drain outlet within the wall. So, it has lowered the sanitary tee fitting. confine mind that the drain height must leave enough room for removing the trap and cleaning it out.

If you’d wish to lower the sanitary tee within the branch drain, it’s an honest idea to attend until I test the other parts of the drain-fitted before gluing and securing the fittings permanently.

Before continuing to subsequent steps, install the new sink. In our example, we are installing a double-basin sink which can have a disposal fitted to a minimum of one basin.

04 Install the rubbish Disposal and
 Strainer

Install the rubbish disposal onto the required side of the sink first, since this takes up the foremost space. Install a basket strainer onto the sink basin without the rubbish disposal. This is often also an honest time to place within the other under-sink components, a filter or a predicament dispenser.

05 Install the Tailpiece and Continuous drain 
The drain tailpiece could also be a straight pipe that connects to the sink strainer and runs right down to a tee fitting (below the sink basin without the disposer). the continual drain connects the disposal’s drain to the tee fitting. The tailpiece and drain must be move length for installation.

Temporarily Install the tailpiece onto the sink strainer, using an error nut (and washer, as applicable).
Temporarily connect the curved end of the continual drain to the rubbish disposal’s drain outlet, using an error nut and washer. The pipe should slope downward slightly toward the tailpiece.
Hold the tee fitting up to the tailpiece and drain, and mark both pipes where they need to be move fit into the tee fitting.
Cut the tailpiece and continuously drain to length with a PVC tubing cutter or a hacksaw.
Reinstall the tailpiece and drain with the tea, leaving the connections hand-tight.
Adjust the pieces as necessary, ensuring the continual waste arm features a small downward pitch toward the tee fitting.
Secure the slip nuts with channel-type pliers. These need not be overly tight; the plastic threads are often damaged if you use an excessive amount of force.
06 Connect the Drain Trap
The drain trap assembly has the U-shaped trap bend. The trap bend fits onto the lowest of the tailpiece tee fitting, while the trap arm extends into the sanitary tee at the wall.
Assemble the trap bend and trap arm together loosely with a mistake nut and washer.
Slide a mistake nut and washer onto the straight end of the trap arm. Adjust the trap pieces as needed to form the foremost direct path from sink to the wall tee. confirm trap arm features a small downward angle toward the wall tee.
Mark and cut the trap arm, as needed, if it’s too long to suit the space, then reinstall the P-trap assembly.
Tighten all slip nuts with channel-type pliers. Again, don’t over-tighten.
Confirm that the continual drain and thus the trap arm slope slightly downward within the direction of the water flow, then check all the drain connections to form sure they’re tight.
Run water in both sink and check looking. stiffen any connection that leak.
Now you can take a final step.
How to install a kitchen sink Plumbing How to install a kitchen sink Plumbing Reviewed by Javed khan on March 04, 2020 Rating: 5

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