Talk:Cleaning/@comment-4290800-20110814223650/@comment-4114768-20110815094637

As you can read in the presentation above, the icons appear randomly on structures of your friend's island every 24 hours (maximum 3 per friend depending on the maximum number of cleaning per level)

To save data's game, you must necessarily have a rooted phone and then use an application to make backups (eg Titanium Backup works well even in free version)

Note : please use the reply button of your first post to make a discussion rather than post a new comment every time, it will be more readable and easy to follow. Thank you