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The manual says: "The Spirovent must be drained off frequently by a qualified installer"
a) how often is 'frequently'
b) How hard can this be? do I really need an 'installer'? Can anyone who's done this advise how to do it / what can go wrong.
It looks like simply attaching a hose at the bottom and using a spanner to gently open it at the side?
a) how often is 'frequently'
b) How hard can this be? do I really need an 'installer'? Can anyone who's done this advise how to do it / what can go wrong.
It looks like simply attaching a hose at the bottom and using a spanner to gently open it at the side?