chrome exposed waste LEAK

[sarahproperty]

I have a p trap under the bath and this is chrome and fits onto a chrome waste and a chrome plug hole. The screw on nut leaks however. I have tried two differnt traps but they always seep even though the correct washers have been used.

do members think that it would it be ok to smear some "plumbers mate" around the join to seal this?

Thanks

 

[TicklyT]

To be pedantic, It's not the nut that's leaking, it is the flange joint inside the nut. The nut only keeps the soft washer clamped firmly between the mating surfaces.

If the flange on the trap doesn't meet the mating end of the waste squarely in all planes you are on a loser. These joints aren't tolerant of misalignment.

Is the bottom of the waste flat, without any dents or dings?

You may need to adjust the pipework to square everything up, or change any damaged parts.

Plumbers' mait or LSX may stop it leaking, but it's not really the 'proper' solution.
Sometimes adding sealant lubricates the washer so it pops out of the joint instead of being gripped by the flange when the union nut is tightened.

 

[sarahproperty]

which bit is the flange joint?

thanks

 

[sarahproperty]

would i be able to fix the leak by using ptf tape inside the chrome nut?

 

[Terrywookfit]

I had similar problem!
Solved by using 2 fibre washers and boss blue!!

 

[sarahproperty]

what is "boss blue"?

 

[Terrywookfit]

Same as boss white but used on potable water supply!!
Its a jointing paste (not silicone)!
Depends on how bad leak is! As previous posts suggest, ensure correct alignment and deformed flanges!
Most of these chrome traps are badly made imported cheapo crap that retailers charge a fortune for!!
If you are running into a soil stack you should also fit a Hep vo type trap to conform to regs as most only have 3/4" seal!!

 

[TicklyT]

which bit is the flange joint?

thanks

In this case the flange is the flared end, like a hat brim, on the end of the trap that engages with the bottom of the 'plughole'. There may be a spigot that locates inside the bath waste as well.
There should be a soft washer sandwiched between the two pipe ends. The whole joint is covered by a union nut which keeps the washer clamped tight.

Chrome pipework doesn't flex like plastic, so any misalignment will stop the washer seating evenly.