Dishwasher and washing machine into one waste spigot

[Jon Parker]

Hello,

Just got hold of a dishwasher for free. I only have one waste spigot under the sink which is occupied by the washing machine. Is it possible to get some sort of Y-adapter and turn my one spigot into two?



I intend to connect the dishwasher to the cold supply by using a brass y-adapter where the current cold supply for the washing machine sits. The Y-adapter for that was fairly easy to find, but finding a suitable adapter to turn one drain spigot into two is proving not so easy.

Or, on the left of my picture, where the white pipe joins the silver underneath the sink, there as a capped-off section there (facing to the right of the picture), could a waste spigot be screwed into that?

Thanks.

 

[Whl4852]

Available at screwfix or try plumb centre. Hope this helps

 

[stevetheplumber]

easist way would be to change the existing trap for a spigot washing machine trap

 

[lame plumber]

pop a jubilee clip on your wm waste, makes a mess if it pops off

 

[Jon Parker]

Available at screwfix or try plumb centre. Hope this helps

Cheers for that, I have looked. What is the name of what I'm looking for? "Spigot Y-adapter" and variations is not coming up trumps.

 

[Jon Parker]

pop a jubilee clip on your wm waste, makes a mess if it pops off

Thanks, will do.

 

[Whl4852]

Sorry think I might of been a bit confused with what you wanted, you'll have to change that fitting for one with a double spigot, under a tender at screwfix item number; 95241

 

[Whl4852]

33137 try this one. Good luck...

 

[sonray ltd]

As steve said change the trap to a twin spigot trap.

You can't dicharge 2 machines into 1 spigot.
And that capped off part of the waste is for an overflow. A machine discharging into that will just blow up the waste in the sink.

 

[Jon Parker]

Sorry think I might of been a bit confused with what you wanted, you'll have to change that fitting for one with a double spigot, under a tender at screwfix item number; 95241

I see the product you mean. However, that doesn't have a pipe from the sink. I think "Sink + 1/2" is what I've got (A main sink and a small "rinser" sink). Will keep on screwfix for now.

 

[sonray ltd]

Look up a mcalpine SK1A

 

[Jon Parker]

Look up a mcalpine SK1A

That's the one I reckon. Looks like what I've got now but with an extra spigot on the other end. Doesn't like quite the right size/shape but I guess you can adjust the various sections to the required length?

 

[sonray ltd]

Yours is a SK2.

 

[Jon Parker]

Yours is a SK2.

So it will fit straight in without any messing about?

 

[sonray ltd]

I can't see the height of the waste exit after it leaves the u trap and go's through the wall etc.

 

[Jon Parker]

I can't see the height of the waste exit after it leaves the u trap and go's through the wall etc.

The shelf in the picture - the waste exits through the exterior wall more or less sitting on that shelf.

 

[sonray ltd]

So you can't alter the waste going out the wall so your new trap would need dropping down.

You would need 1 f these they come in different lengths 1, 2 or 3"
EXTENSION

Screw that on the waste on the left, Then fit waste to that, Then you 1/2 bowl has an adjustable pipe that you cut to length, All should match up then.
Takes abit of kryton factor and measuring to get the right length extension you want and to match existing waste out of the wall.

 

[Jon Parker]

Thanks all, I think I'm nearly there.

 

[sonray ltd]

Theres a few ways to do it.

If you didn't want to muck about with trap you coud just fit a waste kit to existing trap.

 

[sonray ltd]

DRAIN KIT

 

[Jon Parker]

DRAIN KIT

So this kit looks like it just kind of splices into an exisiting pipe (which I have available) and provides a waste spigot, which is just what I need.

Thanks!

 

[sonray ltd]

Yes fits either 32mm or 40mm waste
You can fit it on the vertical/horizontal section of pipe, but must be before the trap.

Comes with a few different spigots and a dc valve.

 

[Jon Parker]

Well I've just come back from screwfix so I'll let you know how it goes!

 

[Jon Parker]

The Y-piece is too big, I need a shorter, stubbier one. But the drain-in kit is done and has tested okay.

 

[Jon Parker]

Having shopped around local places I've ended up having to order online:

Brass Washing Machine Y Piece Only £4.50 - Stevenson Plumbing and Electrical Supplies

Is shorter and stubbier than the plastic version. This should complete the job nicely. Thanks everyone for your advice 🙂

 

[sonray ltd]

Give use a pic the jon of your new drain connection.

 

[Jon Parker]

Just had to nip it up by half a turn on each screw as there were a few drips on emptying the sink after tonights washing up, but refilled, re-emptied and now dry as a bone.

 

[Jon Parker]

The kit also comes with a 90-degree elbow but this is optional and I don't need it.

 

[sonray ltd]

Stick a jubilee on that stigot just on the safe side.
Otherwise jobs a gooden.

 

[Jon Parker]

Yes, curses! I forgot to buy the jubilee clips today. I even stared right at a whole rack of them for several minutes whilst waiting for service in one place! Bah! Silly me!

 

[sonray ltd]

That's sods law.

Also keep hold of the cutter you'll never know when you might want it if you ever move the drain connection or fit a new trap etc.

 

[Jon Parker]

Yep. Already filed away in my "might use at some point in later life, but probably not" section of the shed, along with every off cut of every piece of wood I've ever purchased and not used!

 

[Jon Parker]

The smaller y-piece arrived today, excellent delivery speed from Welcome - Stevenson Plumbing and Electrical Supplies. It's now all connected up and working fine.



Once again folks, thanks for your assistance. Saved me a pretty penny I'm sure.

Regards
Jon

 

[Rickster123]

Thanks for completing the thread with a happy ending Jon!

 

[Jon Parker]

Bah! Spoke too soon! After the dishwashers 2nd run I've got water in the cupboard. Seems to be coming from the underside of the drain cut-in clamp.

I re-read the instructions to make sure I've done it properly, which I have. It says suitable for 40mm and 32mm pipe, I have 40mm - which means you must remove the 2 spacers before fastening the clamp tight, which I have done. Can you see though how where the clamp goes over the pipe it's nipped quite severely? Is this normal for such kits?



It almost looks like the clamp is too small for the pipe and as a result the pipe is being squeezed, deforming as it does so.

At first I thought it might be water leaking from where the dishwasher drain hose goes onto the spigot (still no jubilee clip) but I had a good feel around and that connection was dry as a bone. Definitely seems to be coming from the clamp somewhere.

Shall I risk another half turn on each screw? Is the pipe likely to shatter or just bend if it's over stressed?

 

[Mike Jackson]

Read the instructions again. Looks like you should have left the spacers in for 40mm.

 

[Jon Parker]

It says "Position the 2 plastic saddles over 40mm waste pipe. For 32mm pipe leave the 2 spacers in place."

 

[Rickster123]

Did you tighten it up like the Incredible Hulk!? Looks over tightened to me!

 

[SafeGasInstall]

Cheers for that, I have looked. What is the name of what I'm looking for? "Spigot Y-adapter" and variations is not coming up trumps.

NEVER USE them !!! have been called to two flats that had one of them Y , and they both flooded the flats below

 

[Jon Parker]

Did you tighten it up like the Incredible Hulk!? Looks over tightened to me!

I agree it does look over tight but the clamp will only tighten so far. It's not quite fully closed either. I don't have a big enough screwdriver to tighten it anymore. The pipe is definitely nipped.

 

[Jon Parker]

NEVER USE them !!! have been called to two flats that had one of them Y , and they both flooded the flats below

Thanks, but I've gone with the self-cut extra drain spigot as detailed earlier in the thread.

 

[Jon Parker]

Just checked the screws. Yesterday I tightened them all up pretty much as far as I was physically able to. Today, the two screws at the front I was easily able to put another full turn. It feels like they have slacked off. This is all going very strange, and I may just plump for the Mcalpine SK1a trap and do the whole lot.

From the pictures, have I got push-fit, compression or solvent weld piping?

 

[Rover]

stick a bit of silicone round the edges

 

[Jon Parker]

Silicone on, will see if that has any effect. Thanks for the suggestion.

 

[sonray ltd]

Bloody hell jon you've over tightened it slightly.
You don't need to tighten it so both clamps meet, The top clamp has a o ring that seals it when just hand tight.

 

[Jon Parker]

Bloody hell jon you've over tightened it slightly.
You don't need to tighten it so both clamps meet, The top clamp has a o ring that seals it when just hand tight.

Any mileage in slackening it off? Will the pipe regain its shape or stay deformed?

 

[sonray ltd]

That won't regain it's shape.

 

[Jon Parker]

I'll leave it alone then, and hope the sealant does the business!

 

[sonray ltd]

Shame really all was going well.

 

[Jon Parker]

Agreed. Instructions didn't say anything. I assumed tight=good.

 

[emergencyman]

Possibly the pipe is not 40mm. Sometimes it slightly bigger. If you have a 1 1/2 push fit fitting, use it to test.