The
kitchen sink is an essential element of any household. Food is prepared, dishes
are washed, flower vases are filled, and food is disposed of in the kitchen
sink. The kitchen sink can be installed above the counter, below the counter,
or even as a seamless part of the counter itself.
How to install a Kitchen Sink: Step-by-Step
1. Buy
a sink that will fit the existing opening. (You can buy a sink that’s slightly
bigger than the opening, but it may be difficult to enlarge the hole.) Buy the
rest of the supplies you’ll need and get everything ready to go. If you’re
replacing a cast-iron sink, be sure to have some extra muscle on hand to help
manage the weight.
2. Clear
out the sink cabinet and crawl in there with a flashlight. Locate the clips
that secure the sink and its rim to the countertop. Remove them and disconnect
the supply and drain plumbing.
3. With
your helper holding the sink from above, push up on the old sink from
underneath. You may have to run a putty knife around the perimeter to loosen
the old caulk seal. With the old sink removed, test-fit the new one.
4. Prepare
the new sink by installing the faucet according to the manufacturer’s
directions. Two common sink installation mistakes are, one, forgetting to clean
the new sink thoroughly before installing and, two, forgetting to install the
new faucet before installing the new sink.
Factory-fresh stainless steel sinks
smell awful, so it’s best to scrub them down outdoors. And it’s a lot easier to
install the faucet before you install the sink, for at this stage, the mounting
nuts are more accessible. While you’re at it, install all accessories too,
including sprayer and detergent dispenser mounts.
5. When
installing the faucet and sprayer bases, apply a ribbon of plumber’s putty
first.
6. Apply
caulk under the sink rim and seat it in the opening.
7. Install
the drain and tail pipe, seating it in caulk or using the supplied
gasket—whichever method is recommended by the manufacturer.
8. Install
the new clips, then reconnect the supply lines and drain pipes. If using
flexible supply hoses (recommended), don’t reuse the old ones. The rubber
gasket that seals the connection may have hardened over the years and may not
seat properly to the new faucet’s tailpieces.
9. Finally,
turn on the water and run it for several minutes. Check for leaks at all
connections, especially at the tubing, around the drain, and around the trap.