if You are still expecting the water to freeze yes because the water in the filtration system may freeze and cause damage. Otherwise no.
close system
Insofar as the committee is concerned, the matter is closed.
It doesnt. Law of Conservation of Mass.
1. Deformation 2. Melting 3. Possible "explosion", depending on the content
This is a closed system as far as components is concerned but open as far as energy transfer is concerned.
they should be closed
No, if the vent is closed it should be no problem.
closed system
Closed
NO
Closed
Closed