Categories: Bathroom

How to Replace a PVC Sink Trap | This Old House

This Old House plumbing and heating expert Richard Trethewey shows how to replace a leaky, glued-together kitchen-sink trap. (See below for a shopping list and tools.)
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Shopping List for How to Replace a PVC Sink Trap:
– foil pan, used to catch water drained from trap
– assorted 1 1/2-inch-diameter PVC pipe and fittings, for assembling a new sink trap
– PVC primer and cement, for gluing together PVC pipes and fittings
– paper towels, used to indicate leak

Tools for How to Replace a PVC Sink Trap:
– pliers, for removing threaded plug from bottom of existing sink trap
– reciprocating saw, used to cut out existing sink trap
– drill and special PVC cutterhead, for cutting out section of PVC pipe from inside of existing drainpipe

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How to Replace a PVC Sink Trap | This Old House
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View Comments

  • Went from two clean-outs to none. The leak was probably on the clean-out threads, which could have used some pvc sealant for threaded connections.

  • FYI other people: I see them insert the glued piece and twist a 1/4 turn to ensure spreading the glue completely.

  • You couldn’t use a 2x1.5 bushing and go for the trap instead of building a roller coaster of pvc. U going to put your boss out of business lol

  • They could have eliminated the whole setup if they got rid of the off-seat so run the p trap straight to the wall.

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