Smell from waste pipe

[tonysab]

Hi, both our washing machine and dishwasher feed into the same waste pipe, which after either has been on, absolutely stinks. I have previously got behind the appliances and taken the waste pipe apart where I can and cleaned it out, but this still happens, the rest of the waste pipe I cannot get to as it goes behind the kitchen sink units so unless I get all the worktops off etc I can't get to it. Any advice what I can do? Is there any sort of liquid/cleaner that I can flush through it at all?
Thanks in advance,
Tony

 

[Al-Glasgow]

Have you checked that water is being left in the trap after the washing machine finishes its job ?.

Possibly syphonage is losing your seal.

Alan.

 

[tonysab]

Thanks Alan but sorry to appear dumb I'm not quite sure what you are saying, can you say it more in laymans terms! Thanks.

 

[mrcrow]

my washing machine is attached to the sink waste via a stub...not the usual stack..
i get smells from the machine hose since it is not trapped
i do a 90 degree temp wash and it usually shifts it

or a cup of dettol on rise and spin low load reduced water use

unfortunately this wont work with dishwasher..but i suspect the smell could be just the washing machine...

i eventually will adapt mine to a stack drain then the smells if any can stay in the stack behind the sink...

cheers

 

[Al-Glasgow]

Thanks Alan but sorry to appear dumb I'm not quite sure what you are saying, can you say it more in laymans terms! Thanks.

The whole point of a TRAP is too stop the ingress of foul air, If your trap is losing its water then smells will enter your home.

Can you post a picture of your waste pipework ?.

Alan