The salt cell can stay in place or be taken inside and the pipe ends plugged with expanding rubber plugs (aka winterizing plugs). It can handle the elements just fine. That said, I bring my own inside because it was stupid expensive and I would never leave $1500 cash in a snow drift simply because 'it can handle it" and be dried off later.
The filter gets cleaned *and dried* and then same as the SWG, put back into place or brought inside with the now exposed pipes plugged.
The filter gets cleaned *and dried* and then same as the SWG, put back into place or brought inside with the now exposed pipes plugged.