Smelly dishwasher drainage tube

[Gwynston]

The drainage tubes for both our dishwasher and also on our washing machine are a bit smelly - I presume they're a bit mucky inside, although they still drain OK.

What's the best thing to do to rectify this?
Not sure if I need a regular drain unblocker/cleaner as it's not really blocked. And the tubes tend to be long compared to the U-bend on a sink drain, so I'd like something that will clean out the whole length, not just the lowest part.

 

[Gobo]

Most dishwasher tablet manufacturers make a dishwasher cleaner, they will normally remove most debris and smell etc.

 

[Gwynston]

Hmmm, I always thought those were to clean the inside of a grubby dishwasher? I've never seen the point of them, since running the dishwasher keeps it pretty clean (just like it cleans the dishes!)

What about the washing machine drain pipe?

 

[Gobo]

They also clean the drainage pipe too as a dishwasher cycles water thru as its cleaning and doesn't just fill like a washing machine, think oust do ones for both dishwasher and washing machine. If you could access the waste for the washing machine you could pour a sink cleaning product directly into it then next time you use you washer it should rinse it through.

 

[Gwynston]

I guess this is what you're thinking about:

http://www.diytools.co.uk/diy/Main/...r-&-washing-machine-cleaner-2-sachet-pack.asp

Worth a try I suppose!