Twin appliances to sink and half outlet?

[Wet_One]

Hi I currently have a washing machine next to my kitchen sink and the waste is connected to the trap as the photo (click to expand)




I want to add a dishwasher next to the washing machine. But how do I add in the waste pipe to the current set up? I can't find a suitable trap/twin connector to add (can't seem to find anything that has twin appliance connectors for a sink and a half)

As it is a 3rd floor flat with a fitted kitchen, I have to go via this waste.

Ta

 

[nflowers]

Something like this connected to the horizontal pipe from the 1/2 sink?
http://www.wickes.co.uk/Wickes-Self-Tapping-in-Waste-Kit/p/421642

 

[Wet_One]

Well that seems like a very simple and perfect solution. Thanks.

A couple of questions: Do they have a one-way valve inside them to prevent sink water from entering the appliance waste pipe? If I fit the waste kit before I am ready to plumb in the dishwasher, do I need to bung a cork in there until everything is connected?

For the cold water inlet, bung on a Y-piece and make sure I have a blanking cap knocking around in case I ever need to disconnect one appliance?

 

[Hugh Jaleak]

Probably better to swap the current trap for something with twin appliance connections, e.g. http://www.mcalpineplumbing.com/tra...-and-a-half-sink-kit-1071.html?id=102&cat=102

For the water supply I seriously recommend you try and fit a proper valve, e.g. http://www.screwfix.com/p/washing-machine-valve-tee-15mm-x-bsp/60723 The plastic Y pieces aren't very spectacular, (I certainly wouldn't trust one!), and being on the 3rd floor, there's others below you who wont thank your for an impromptu shower, I am sure....

 

[nflowers]

Well that seems like a very simple and perfect solution. Thanks.

A couple of questions: Do they have a one-way valve inside them to prevent sink water from entering the appliance waste pipe? If I fit the waste kit before I am ready to plumb in the dishwasher, do I need to bung a cork in there until everything is connected?

Yes, they do have a one-way valve in the body. Best to fit them with the hole on the upper side of pipe so water from the half sink is less likely to reach the one-way valve.

 

[Wet_One]

I'd looked at that trap but mistakenly thought that I couldn't use it because the overflow was required on the right part of it. Now I realise that the overflow is part of the piping of the basin outlet, not the trap.

In fact, I think I can simply use the red part of that trap and swap it into my existing trap (presumably, you can't buy the section on its own).

Which seems like a real doddle.

 

[bernardgreen]

Fitted one of these at the weekend

http://www.screwfix.com/p/mcalpine-appliance-trap-40mm-white/95241