Before You Begin
Shut off the water at the source before beginning to remove the old laundry tub. Use a pipe wrench to loosen the old connections from the wall pipe. If the tube trap and riser supply tubes are not in good condition, replace them with new ones. Replace any rusted or corroded fittings with new ones. Then disassemble the faucet and save it to reinstall.
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Step 1 : Cut out the faucet holes
Use a hole saw cutter to remove the faucet knockout holes on the counter of the tub.
Step 2 : Add the legs or base
Place the tub upside down on a flat surface and add the legs or base. Insert the legs in the four corner sockets. Drive them completely into the sockets with a hammer and a piece of scrap wood to protect the bottom of the leg.
Step 3 : Install the faucet
It's easier to install the faucet and trap in the sink before setting the tub in position so you can move around the sink. Position the faucet over the holes on the sink and hand- tighten with locknuts. Assemble the faucet and make connections to the water lines. Thread large metal nuts on the connector onto the faucet shank and tighten with a wrench. Then thread small metal compression nuts on the connectors onto the outlet of the water supply valve. Tighten with a wrench.
Step 4 : Measure and cut drain pipes
Under the sink measure and cut the wall tube and tailpiece to the required length with a hacksaw. Use sandpaper or a file to remove burrs. Position the nut on the wall tube and insert it into the waste connector. Tighten the nut. On the tailpiece position the nut and washer and slip the tailpipe into the p-trap. Slip the washer in the end of the tailpipe to attach it to the tub drain with a nut. Then hand-tighten all the nuts.
Step 5 : Connect the water lines
Turn the faucet handles all the way on and turn on the hot and cold water supplies. Flush the lines for a few minutes to remove debris that could damage the interior of the pipes. If your tub has screw holes in the sink legs, use them to anchor the unit to the floor with screws.
Illustrations courtesy of American Shower & Bath Corp.