Washing Machine Waste coming Up Through Sink

WabbitPoo · 23 Apr 2020

As title....I have

and when the WM empties it sends pretty foul smelly water up into the sink. I've checked the trap for blockages.

How might I modify this so it doesn't stink up the kitchen?

sircerebus666 · 23 Apr 2020

The washing machine when emptying might be sucking all the water out of the trap which is causing smells to come up from the sewer

Or your washing machine is causing the smell

Check your trap after a drain to see if any water is left in it

Lower · 23 Apr 2020

If the washing is pushing water back up into the sink its because you have a blockage somewhere downstream. The washing machine pump is pushing water out faster than it can go down the drain so it only has one place to go and that is up and out of the plughole.

WabbitPoo · 23 Apr 2020

the inlet for the WM is slightly below the level of the waste pipe, as you can perhaps see from the picture....surely the WM is trying to push water uphill...no wonder it can't escape quickly enough...

sircerebus666 · 23 Apr 2020

WabbitPoo said:
the inlet for the WM is slightly below the level of the waste pipe, as you can perhaps see from the picture....surely the WM is trying to push water uphill...no wonder it can't escape quickly enough...

That's totally normal and what is fitted to millions of washing machines without pushing water out of the sink

Apologies I didn't read your first post correctly , you have a blockage downstream somewhere , if you see how long it takes for the water to come up into your sink that will tell you roughly how far down the pipe it is

WabbitPoo · 23 Apr 2020

Funny that the sink drains very well, if there's a blockage. I'll take everything to bits and see if I can spot anything. Thanks

endecotp · 23 Apr 2020

WabbitPoo said:
Funny that the sink drains very well,

It is probably draining into the washing machine.

bobasd · 23 Apr 2020

As above, clear the drain hose and trap.
Does the hose run high, and then drop to the trap spigot?
A pic showing under the sink plumbing might help?
Is the trap arm discharging thro the wall to a gulley or a Tee?

WabbitPoo · 4 May 2020

I sorted it out....the issue was the pipe taking it all away was a little too level...I made mods to the whole setup and have a better fall on the system. Cheers guys

diynot

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Washing Machine Waste coming Up Through Sink

Similar threads