What is the correct why with the Atom, to leave the filter in when using dry, then when cleaning wet gutters take filter out?
Gazza
I don't know exactly what filters the Atom comes with, but you must always have a filter in.
Our vac has a foam filter for wet applications. I purchased a wet and dry filter separately for times when the gutter contents are dry. It can be washed clean with a hose. IMHO the foam filter isn't suitable for dry contents. If that was the only filter I have then I would either wait of a wet day or fill the gutters with water prior to clearing.
Most vacuum cleaners use the suction air to cool the vacuum's motor, so using it with a filter will destroy the motor for sure.