Our wheelie bin honks. Its now only collected every two weeks and in theory shouldn't hum too much as we have a separate food waste collection, but we have nappies from both our toddler and baby in there (we do use reusables on the baby most of the time, but not the toddler). It now smells when empty and I think I can smell it when the lid is shut (might be paranoid aboutt this though).
How often do you clean your wheelie bin, and how do you do it (especially if you don't have access to a hose where your bin is kept)?