Waste plumbing query

clueless_but_curious

I've fit a Reginox sink and I've been totally thrown by not knowing how to connect the pipework that came with the sink (says 1 1/2" on the pipe) to my waste pipe which is 40mm.

I think I need a coupler with a 1.5" female and 40mm male but then I start to go cross eyed trying to work out how to then get down to the waste. I assume I will need to cut where the 135 degree elbow meets the waste.

Can anybody recommend me some parts from a merchant that will get me from sink to waste with a vague description of the journey? I'd prefer to use compression fittings if possible

daivid

Cut the outlet pipe where your arrow is, then a pipe at 45degrees. Personally I would solvent weld after the trap, once done right it will stay right and if it needs altering 'replacing pipe is cheaper than a leak'. You can buy reducers that screw on to the waste then go straight into another thread, though push fit may have enough tolerance that you don't need an adaptor.

Jeepers_Creepers

Do you still need to add a U-bend to the pipe under the sink?

And what's that white compression fitting on the pipe to the left?

clueless_but_curious

Sorry but I am really struggling without specifics.  Are you suggesting I need:
1.5" 45 degree elbow at sink outlet, connecting to;
1.5" pipe, connecting to;
1.5" 45 degree elbow, connecting to;
1.5" pipe, connecting to;
Trap 1.5" but the female waste is 40mm?

Links to parts on websites would really help - I really have been thrown with these pipe sizes

Jeepers_Creepers

If you haven't yet fitted a U-bend, then do so. Then we can work out how to join it all

(I would be inclined to stick with compression fittings for this job, as it allows a lot of movement and adjustment.With 'solvent', you have to be pretty much spot on. Also, once glued, it's fixed.)

That 40mm pipe has a 45o elbow on it. A good start could well be: https://www.screwfix.com/p/floplast-wc19-universal-compression-waste-bend-135-45-40mm/30640 which will bring it up vertically.

There's even things like: https://www.screwfix.com/p/floplast-wc23-universal-compression-waste-adjustable-bend-40mm/12007

Do you have any spare pipe? If not, you can always consider https://www.screwfix.com/p/mcalpine-flexicon4-flexible-connector-white-40-x-157-242mm/86386  We won't snigger, honestly...

clueless_but_curious

Thanks Jeepers...I've just been to get some materials so will give it a go tomorrow