Basin waste and trap replacement

[GoodDIYjob]

I want to replace the waste and trap on this Sphynx basin. However the bottle trap arrangement wasn't what I was expecting to find.

The bottle trap on there has no union nut to screw onto a conventional waste thread. It looks integrated with waste?

The brand on the bottle trap says viega.

Can I replace with a conventional waste and trap. It seems very tight distance wise between the underside of waste to the outlet from trap due to existing fitting hard up under the basin with a rubber gasket...

Yes, I know the pipework for the water feeds are not great. Mixture of press fit and compression and lots of Pfte tape.

Thanks for anything to make this easier.

 

[CBW]

Good evening,

A birds eye view phot of basin may help. You would need to measure the outlet size of your basin waste to ensure you obtain the correct one, looks very similar to one of these: https://mcalpineplumbing.com/waste-outlet-fittings/basin-wastes/bsw1pcc-centre-pin-basin-waste

 

[GoodDIYjob]

Thanks for looking. Attached is waste from above. I don’t think there is a centre pin.

 

[CBW]

View attachment 180996 Thanks for looking. Attached is waste from above. I don’t think there is a centre pin.

No,no centrepin, what I meant to say was, you probably need one like that.

 

[GoodDIYjob]

No,no centrepin, what I meant to say was, you probably need one like that.

Yes, think you are right. I disassembled and the thread is 1 1/2" and very little thread on the waste so the bottle trap is brought up to seal against the underside of basin..

I've ordered a mcalpine 1 1/2" centre pin bath waste similar to what you linked. Reason being that just to make life even more difficult, it had a 70 mm flange/ recess in the basin. I think this is all euro stuff and sold complete with basin at time of install.

I think I've found a spare part for the waste and valve arrangement. But pricey and a funny arrangement for a basin plug. So I'll try the mcalpine first.. thanks again.


https://www.viega.co.uk/en/products...-bidets/Cover-plate-standing-pipe-5420-9.html

613648 Viega Cover plate standing pipe