How to Replace Kitchen Sink Pipes
A leaking sink pipe can leave water stains and puddles on the floor and in the cabinet. Over time this can rot the wood and leave a bad odor. The problem can usually be fixed by tightening the joints. Sometimes the kitchen sink pipes will have to be replaced. This article will instruct you on how to replace kitchen sink pipes.
How To Replace Kitchen Sink Pipes
Loosen the joints on the leaking pipe or joint. You may have to use an adjustable wrench to loosen the nuts on the metal pipe joints. Loosen the coupling nuts on both ends of the pipes joined with a cemented sleeve joint. Remove the broken pipes.
Place new rubber gaskets against the inside bottom of the coupling nuts. Place the threads of the trap pipe into the coupling nuts form the adjoining pipes on either side. Tighten the nuts by hand.
Join pipes together that do no have coupling nuts on them. Spray a coat of PVC primer on the wider inside sleeve fitting. Spread the primer on the end of the regular size pipe. Allow the primer to dry.
Put clear PVC cement on the same two pieces that have the PVC primer. Slip the small pipe end into the sleeve and turn it to fit the pipes together. Hold the joints firmly and wipe away the excess outer ring. Allow the pieces to dry before using the pipes or adding joints.
Install a tailpiece and drainage arm under the kitchen sink. Put the inner ring of the tailpiece washer into the upper end of the tailpiece pipe. Push the tailpiece against the bottom of the strainer basket. Thread the slip-joint nut from the pipe to the threads of the strainer basket. Tighten the nuts. Join the bottom of the tailpiece to the drainage arm near the elbow bend with a coupling nut. Connect the straight end of the drainage arm to the coupling nut at the trap pipe joint.
Install a vertical drainpipe. Connect the bottom to a PVC drain with a coupling nut. Attach the bottoms to a metal drain pipe with a flexible coupling. Spread a layer of pipe thread compound round the top of the metal pipe. Slip one end of the coupling over the top of the pipe. Tighten the band clamp. Push the bottom of the vertical drainpipe into the top of the coupling. Tighten the upper clamp. Connect the top of the vertical drain to elbow to the trap with a coupling nut.