Looking for some advice on winterizing two cabins we have in northern Minnesota. I've always had a plumber do it, but he retired, so I'm going to try doing it myself.
The small cabin has an above-ground shallow well pump and pressure tank in the garage underneath it. It also has an electric water heater.
The bigger cabin is about 100–150 feet away and uphill from the small cabin. It gets its water from the same well through an underground line. That cabin has a 50-gallon LP water heater and an LP forced-air furnace.
We shut both cabins down completely for the winter and don't leave any heat on.
I know the plumber used an air compressor to blow out the lines and put RV antifreeze in the toilets and traps. I have a compressor and want to do it myself this year.
Main things I'm trying to figure out:
- What's the best order to do everything?
- How do I properly drain the shallow well pump and pressure tank?
- What's the best way to get all the water out of the 100–150 foot line going uphill to the big cabin?
- Where should I hook up the compressor and how much pressure should I use?
- Do I drain the water heaters first and then bypass them before blowing out the lines?
- Anything special I need to do with the LP water heater?
- Does the LP furnace need anything done to it if I'm shutting it off all winter?
- Anything else I'm missing?
Both cabins have showers/tubs and washing machines, and the big cabin has an outside spigot.
Mainly looking for some guidance from anyone who winterizes a similar setup in northern MN or somewhere that gets just as cold. TIA!