Plumbing help

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Plumbing help

Postby jastons on Mon Sep 24, 2018 7:48 pm

To cut a long story short....should the waste pipe underneath my kitchen sink be threaded?
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Re: Plumbing help

Postby DasNutNock on Mon Sep 24, 2018 7:55 pm

No, plastic waste pipes are normally fixed using solvent glue.
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Re: Plumbing help

Postby jastons on Mon Sep 24, 2018 8:12 pm

I'm talking about a waste trap, something similar to this http://bit.do/exqCg although mine is much older and not threaded where it connects to the kitchen sink.

I've had trouble finding a 38mm waste trap to replace it, would sticking a load of adhesive around the unthreaded pipe be an adequate solution?
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Re: Plumbing help

Postby DasNutNock on Mon Sep 24, 2018 8:19 pm

Ah, see what you mean. Take photos (tape measure alongside the bit for scale, if necessary) and any removable parts to a plumbing shop and they’ll have the bits you need in the correct sizes.
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Re: Plumbing help

Postby mushy on Tue Sep 25, 2018 1:54 am

Are you saying that the waste outlet from the basin doesnt have a thread?
Thought they all did these days.
If not , replace it.
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Re: Plumbing help

Postby jastons on Tue Sep 25, 2018 6:48 am

mushy wrote:Are you saying that the waste outlet from the basin doesnt have a thread?
Thought they all did these days.
If not , replace it.


The basin does, the pipe going into it doesn't. When I push said pipe into the basin and tighten the nut and washer I get a water tight seal... until the pipe falls away from the basin. The nut stays firmly on the basin.
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Re: Plumbing help

Postby sendô on Tue Sep 25, 2018 7:43 am

Yea that should be threaded, because it is removable. Normally the rest of it will be push fit (yet plumbers insist they're skilled tradies).
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Re: Plumbing help

Postby jastons on Tue Sep 25, 2018 10:40 am

sendô wrote:Yea that should be threaded, because it is removable. Normally the rest of it will be push fit (yet plumbers insist they're skilled tradies).


So I should really be looking to replace the pipe then? It has a 38mm diameter but the ones from screwfix, b&q, tool station and wickes are all either 32 or 40 mm. My basin outlet is 38mm.
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Re: Plumbing help

Postby DasNutNock on Tue Sep 25, 2018 11:19 am

Go to a plumbing shop! The blokes behind the counter will know exactly what you need.
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Re: Plumbing help

Postby sendô on Tue Sep 25, 2018 11:27 am

Or go to B&Q and ask the checkout girls.
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Re: Plumbing help

Postby DasNutNock on Tue Sep 25, 2018 11:28 am

sendô wrote:Or go to B&Q and ask the checkout girls.


Or ask one of the 85 year olds they employ to wander aimlessly round the store, avoiding eye contact with their customers.
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Re: Plumbing help

Postby Hummer_I_mean_Hammer on Tue Sep 25, 2018 12:44 pm

sendô wrote:Or go to B&Q and ask the checkout girls.


Don't knock it..

Back in the day a mate of mine got several meters of 6.00mm (new shower supply) and several sheets of MDF (new fitted wardrobes) on the cheap by telling the young lass it was 1.5mm T&E & chipboard.
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