i cleaned my filter for my vents the other day and already another leaf has worked its way in and is ticking its head off again.

do you lot get this problem? how often do you find it happens?

i live in the hills so there is no escaping the evil leaves

starting to think im gonna need the thing they use on gutters to stop leaves going down the down pipes!

I think the simple answer is; as required.

Depending on where you live it will need cleaning out more often. I think I've cleaned mine out twice in 4 years.

i clean em very often

yes if you want to be onto it they require regular cleaning in general. As mentioned also though 'as required' is probably the best answer. Another good place to clean out is behind the front inner guards... alot of schitt gets in there to.

How much time you got ? hehe