
As I type, my lovely hairdryer is currently buried under the earth, blasting hot air under our well to defrost the pipe so that we can get water again. (which...by the way, actually worked!...and we have free flowing water again).
So, here is what happened at our house.

It all begins with the infestation of marmots on our property. I now officially consider them pests. The image above is my husband Gui creating a barrier a few feet below ground so that they would stop making a home under our house. .. and the one below is me decked out in gear to spray a strong pepper spray that might deter them from the garden.

At the time, neither one of us realized how much damage this cute little guys can cause.
In the heat of the summer marmots dig holes under the ground and hibernate for the winter.
This year, they dug holes under our well.
2 days ago, when the weather was its coldest ( - 18 ish) we lost our water. Of course we all feared cracking pipes etc etc.
Turns out the reason the pipes froze is because the holes dug under the well were letting cold wind in and freezing the pipe going into the ground.
So..here is a random post that MAY help somebody in a similar situation, as I never would have thought of it!
How to De-thaw the Ground and Your Well Water Pipe caused by Marmot Holes in GroundAnalyze the situation:Part 1: You have no water (and it's winter and cold). Here was about -20 C and a strong wind.
(Before we knew about the holes, we checked the well for leaks, broken pipes, system failures etc...and also tried putting more heaters inside the well to heat up the pipes from the inside. Nothing worked! We did not know yet about the holes.
Part 3: If nothing is working, before fearing cracked pipes, investigate for any holes leading under the well. If you have holes there from marmots and it was a cold wind, this is likely why your pipes are frozen.
What to do:
1. Clear away any snow surrounding the well, and then get on your hands and knees and check for holes dug under the well.
2. If you find holes, go to your garage or hardware store and get the following items:
* BBQ coal (2-3 bags was enough for us)
* Lighter fluid (1-2 containers worked here)
* Hairdryer & extension cord.
3. Plug in the hair dryer and position it inside a hole, and under the well aiming the hot air at the ground pipe if you can see it. Use something to block the cold air from coming in again (...foam insulation is what we had on hand.)
4. Spread 1-2 bags of coal around the well walls..we covered a space about 1.5 foot x 4 feet to heat up the ground below.
Safety Note!! Our well has steel sides, so no risk of setting it on fire..if you have wood sides, this may be a bad idea, I'm not sure. In any case, make sure you are around to keep an eye on things.
5. Pour the lighter fluid and light the coals, we needed a bit of dry grass to get things going as well.
6. Wait for the water. Ours took about 3 hours and we got our water back!
7. Now you can let the the coals die down, and turn off the hair dryer. Be sure to put something to insulate the holes from letting air in again (hay, wood chips, insulation of some sort).
8. To keep the pipes from freezing again in the cold cold weather, we now also leave a faucet on with a tiny trickle which I am told will prevent them from freezing again.
... I hope that helps somebody out there. :)
Heidi