Sink waste connection

[i_am_fubar]

I have a new sink with an overflow that is integrated into the bowl. How would one connect the drain and waste pipe while maintaining a water tight seal?

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• i_am_fubar
• 9 Dec 2008
• 1

Cheers,
Sam.[/img]

 

[TicklyT]

//www.diynot.com/wiki/plumbing:faq:faq26

 

[i_am_fubar]

Ah, ok, so I need to drill into the waste thread to let the water in and screw the whole lot together with a plumbers mate.

 

[TicklyT]

The basin would normally be fitted with a 'pre-drilled' slotted waste, rather than a plain one, but yes, that's the essence.

If you use a 'Basin Mate' washer, that will compress into the threads to seal it instead of using sealant, which can squeeze out and get everywhere when you assemble it.

In my experience some of the silicon sealants are slippery enough to let a plain rubber washer pop out of the joint when you tighten the backnut.

Maybe a trip to the plumbers' merchant to swap your unslotted waste and get a 'Basin Mate' washer?