You don't want to drain your bog in the winter. The plants will dry out and die. Just let it freeze and watch them come back in the spring!
This was my initial thought, but I have seen a lot about draining/disconnecting for winter. Though maybe they were only using tender/tropicals like elephant ears or caladiums or cannas? I do plan on having a few of those in the bog but I would lift them for garage winter storage like I do everywhere else in my gardens, so no concern for them freezing.
After the tropical storm we had Friday, I took advantage of the cooler weather and cut down the dwarf evergreen that was impeding my project. Now that it's gone, I have found an electrical panel! Though it doesn't have power, I have no idea as to whether the electrical wasn't ran or if it just wasn't connect in the house. So add that to my list of things to sort before I get the bog set up, as the panel is right next to where I am planning on sitting the bog and the conduit would run a straighter path if it goes under the proposed bog site. I would LOVE to have the panel up and running, so I canmove the pressure filter and get rid of the jury-rigged half-buried extension cord that currently powers the pond. The joys of owning a previously-owned home LOL!
View from my deck from earlier this year, before the tragic loss of most of my fish
What we look like as of Friday night from my deck-
And my electrical surprise! The covered box has a 4 outlet plate installed. I will add a 2 plug plate to the empty one, unless the electrician will just make me a 6 plug box- not sure of the logistics for the circuit panel and such. I don't mess with electricity myself! Good thing we already need one out to run the power for a large air compressor in the garage.
The ribbed hose is my extra circulation pump to get any debris/gunk to the lower end of the pond while I was doing a deep clean and I had been too lazy to get it back out. And now that I will be using it for the bog, I have just left it circulating. The thin black cord is hollow and seems to run under my pond. I haven't see the other end of it under the Acer, but maybe it's actually buried? Who knows.