How do I do a drum clean?

[alisonthursby]

 I've been trying to figure out how to do a 'drum clean' on my washing machine. I have a SAMSUNG - ecobubble WF70F5E2W4W 7KG and there's nowhere on the front that mentions drum clean, I can't find it on the manual either? 

[MasukaH]

Hiya! Have a look at this link for some maintenance tips on how to keep your washing machine happy: http://www.samsung.com/uk/support/skp/faq/1108906