Dishwasher Waste Pipe 18mm to 22mm Help

[Acorn]

Hi All,

I am a complete NOOB when it comes to plumbing so please bear with me and use baby steps lol.

I'm trying to plumb in a dishwasher but I am having a problem with the waste hose.

The hose is pre-fitted to the dishwasher so I can't remove it.

The hole at the end of the waste hose is 18mm but the copper pipe I need to attach it to is 22mm.

Is there any kind of adapter that I can use to connect the 18mm end of the waste hose into the 22mm end of the copper pipe.

Unfortunately I can't change the fittings or the waste hose.

I have attached a photo of what I am working with, its all original fittings that are there I have not changed anything.

 

[ShaunCorbs]

Is it the rubber type on the end of the hose ?

 

[Acorn]

Is it the rubber type on the end of the hose ?

Yes it is

 

[ShaunCorbs]

It's going to be fun but it should fit over

You could try warming the rubber up in some boiling water for a couple of seconds

Watch you don't cut your self on the copper pipe when your trying to push it on

 

[Acorn]

It's going to be fun but it should fit over

You could try warming the rubber up in some boiling water for a couple of seconds

Watch you don't cut your self on the copper pipe when your trying to push it on

Ok cool I will try again. I was just worried about pushing too hard in case the pipe split.

It's strange as the last dishwasher I had the pipe slipped over the top of the copper pipe with no problem at all as it was a 22mm opening.

 

[ShaunCorbs]

Your best option is to get a proper washing machine upstand installed with a trap

 

[Acorn]

Your best option is to get a proper washing machine upstand installed with a trap

How would I fit that to whats all ready there?

 

[ShaunCorbs]

How would I fit that to whats all ready there?

You couldn't the waste pipe would need to be altered easy enough to do for a pro

 

[daWilko]

Hi Acorn - it might be blind leading the blind (not a plumber and I hate those fittings) but this may have parts you need?

Washing Machine Drain-Out Kit

 

[Ric2013]

Looking at the link daWilko has posted, perhaps all you need to do is slacken the lowest Jubilee clip and remove the bit of copper. Might have a nozzle like in the picture?