Plumbing Question

[newpersn]

We have brought i new sink (Well ex showroom) to replace our stainless steel one.

 

Our new sink has 2 bowls rather then then 1 bowl. The new sink is the other way around. (Comes with the tap hole ready cut out)

 

I'm trying to work out what parts i need to connect the waste up.

As you can see i have 2 appliance waste (D/W & W/M) and the waste exits down the right side.

 

I was looking at one of these to join the 2 wastes up: https://www.screwfix.com/p/mcalpine-1-bowl-sink-kit-trap-white-40mm/6295p

 

Guessing i will need some more pipe for waste?.

 

Any thoughts?. - Please don't take the mick. Learning how to do this my self. Yes i know the cupboards a mess.

[JATSO]

You on the right track you may need a small length of 40mm from the drop down and coupler, don't forget silicon sealant and PTFE tape or you could get this one with drop down.

 

https://www.screwfix.com/p/mcalpine-sink-kit-white-40mm/801hr

[jmak]

That should work. You might need a length of pipe and a spare coupler (was going to write joint, but that didn't sound right [emoji6]) to make things meet up.

 

Where the drain leaves the cupboard, the pipe joints are glued - you'll probably have to cut that to make it join to your new bits.

 

It doesn't apply to most people, but I'll say it to an Edugeek: use your common sense and you'll be fine [emoji41]

 

Only hints I can think of are:

Make sure none of the pipes run uphill,

Make sure the joints are aligned. If you force an angle, the joint will be under strain and could leak - to avoid that make sure to cut the pipes to the correct length

Empty the cupboard first and maybe leave it empty until you've run a full cycle of dishwasher and washing machine (assuming that's what the appliance drains are for) and emptied the sinks a couple of times. You want to be certain there are no leaks.

[jmak]

You on the right track you may need a small length of 40mm from the drop down and coupler, don't forget silicon sealant and PTFE tape or you could get this one with drop down.

 

https://www.screwfix.com/p/mcalpine-sink-kit-white-40mm/801hr

You'll definitely need PFTE tape if you've got metal threads to attach the taps. The last time I fitted a sink, it specifically said not to use silicon as it could stop the built in seals working properly. However when I fitted a basin, I did need silicon to fit the plug hole. Worth reading the instructions...

 

The drain connectors should have rubber seals built in and only need to be hand tight - you'll want to be able to undo them to clear blockages, so no silicon there.

[Seb1780]

Is your sink new? If so, I'd expect it to be supplied with some fittings to join the waste and overflow from the two bowls to a single point where you can attach the trap.

 

If not (or you have no parts) the one @JATSO mentioned has greater flexibility to accommodate different basin outlet heights.

 

Another option is to add two traps and make the join in your waste water pipes after the traps - this means simpler, cheaper traps but a bit more room wasted under the sink.

[Reboot_IT]

Have you tried switching it off and on?

[newpersn]

Thanks everyone for the help/pointers.

 

 

New worktop in kitchen. New washing machine fitted. 2nd sink fitted with new tap.

 

Only 2 leaks when I installed the new tap.

[Boredguy]

It is me, or does the trap exit pipe seem to be high (behind the yellow topped spray bottle)

[newpersn]

Does look it in the photo. I haven't got a small level to check.

 

The exit pipe is towards the back of the cupboard. Its all draining fine. Washing machine and dishwasher