Under sink waste trap... Countertop dishwasher

keystone

You need to connect the trap to the existing 1½" (or 40mm if you prefer) waste. Standard 1½" waste won't fit into the trap - the OD is too big - so you need the adaptor.

Forget the springy corrugated flexi things of any shape size or description. They are a lovely collecting device for bits of food, gunge and whatever that go down the plughole (another reason I don't like bottle traps on sinks but thats another matter). You need a clean run of pipework.

So it goes trap --> adaptor using the compression fitting on the trap. To connect the adaptor to a length of 1½" waste pipe either

1. Use the straight compression coupling as previously illustrated. One end on the other side oif the adaptor from the trap and the other on the length of pipe. or;

2. Solvent weld the pipe to the adaptor if the diameters work out OK.

So with your piece of pipe long enough to reach into the left hand corner of the sink base unit you attach a 90 degree bend. If you are lucky then that can be fitted to the exisiting downwards pointing piece of waste pipe without further modification but I suspect not from the pic so you may have to extend that.

Does that make sense now?

Cheers

keystone

richardc1983 wrote: »

... at this rate it will be cheaper to get a plumber in to come sort it.

Yes and quicker too!

Cheers

keystone

Re flexis. The one Russ linked to is 1½ inch. The one Richard linked to is 1.25"!!! So Richards one won't work by any stretch of the imagination. As I'm starting to lose the will to live am going to back out of this thread and let you two get on with it.

Cheers

richardc1983

keystone wrote: »

You need to connect the trap to the existing 1½" (or 40mm if you prefer) waste. Standard 1½" waste won't fit into the trap - the OD is too big - so you need the adaptor.

Forget the springy corrugated flexi things of any shape size or description. They are a lovely collecting device for bits of food, gunge and whatever that go down the plughole (another reason I don't like bottle traps on sinks but thats another matter). You need a clean run of pipework.

So it goes trap --> adaptor using the compression fitting on the trap. To connect the adaptor to a length of 1½" waste pipe either

1. Use the straight compression coupling as previously illustrated. One end on the other side oif the adaptor from the trap and the other on the length of pipe. or;

2. Solvent weld the pipe to the adaptor if the diameters work out OK.

So with your piece of pipe long enough to reach into the left hand corner of the sink base unit you attach a 90 degree bend. If you are lucky then that can be fitted to the exisiting downwards pointing piece of waste pipe without further modification but I suspect not from the pic so you may have to extend that.

Does that make sense now?

Cheers

Its making sense yes but becoming complicated... I think I am just going to get a plumber in to do this then I know its done properly.

Because of the space I have to work with cutting pipe to the right length and bend etc is going to be a night mare for me. The stretchy length of pipe would have been best as it just connects up and bends its self to the required length etc but as you say not ideal for free flow of water. Just tried the compression coupling on a stretchy hose that I bought yesterday to see if it would fit to the adapter and it wont fit so only way to do it is by fitting a piece of pipe in there or using the stretchy hose as the compression coupling will not fit onto the end of the adapter, the pipe needs to go into the adapter.

Just going to have to accept that cant money save on this thing I have tried. Otherwise ill be backwards and forwards to plumbers merchants and I dont want that.

richardc1983

keystone wrote: »

Re flexis. The one Russ linked to is 1½ inch. The one Richard linked to is 1.25"!!! So Richards one won't work by any stretch of the imagination. As I'm starting to lose the will to live am going to back out of this thread and let you two get on with it.

Cheers

I tried to link to the 1 1/2 but seems to be a problem with the way firefox takes links from website... I would be buying a 1 1/2 flexy. I am not that thick lol.

http://www.toolstation.com/shop/Plumbing/Traps+Waste/Flexi+Waste+Connector+1+12/d20/sd2907/p29398 product code p29398 but for some reason defaults to the 1/1/4 each time..

Ruski

In which case go shopping to B&Poo or wherever and buy:
1x pot solvent weld
1x length of solvent weld 40mm pipe
1x sw 40mm elbow
1x 40mm compression connector

Thats all you need to buy to connect up your new waste to your existing setup. (And is a more professional solution that bendy things!!)

What you do with the two wastes into one scenario is up to you!

HTH

Russ

richardc1983

Ruski wrote: »

In which case go shopping to B&Poo or wherever and buy:
1x pot solvent weld
1x length of solvent weld 40mm pipe
1x sw 40mm elbow
1x 40mm compression connector

Thats all you need to buy to connect up your new waste to your existing setup. (And is a more professional solution that bendy things!!)

What you do with the two wastes into one scenario is up to you!

HTH

Russ

So if i use the above its a case of just cutting the length of pipe the right length? How do we know it will connect as the height to the waste may be different etc?

Ruski

richardc1983 wrote: »

So if i use the above its a case of just cutting the length of pipe the right length? How do we know it will connect as the height to the waste may be different etc?

Start at the trap and work 'backwards' towards the existing pipe.
You should end up with a 'right angle' setup - judging from your first photo I would say about 8" across and down.
Measure and cut pipe and dry fit everything first - then you can adjust as necessary.

I'll try and draw a picture for you....:D

Russ

richardc1983

Ruski wrote: »

Start at the trap and work 'backwards' towards the existing pipe.
You should end up with a 'right angle' setup - judging from your first photo I would say about 8" across and down.
Measure and cut pipe and dry fit everything first - then you can adjust as necessary.

I'll try and draw a picture for you....:D

Russ

Thank you picture would be good.

Ruski

Errr.. dunno ifyou can click the link below?

https://docs.google.com/open?id=0BxP4P7yXMV1DRFlPT1VUVFhhaEk

You could replace the solvent weld elbow with a compression if you feel more omfortable with that too.

HTH

Russ

p.s. I'm certainly no Picasso, so my apologies!