by Birdie » Sun Oct 31, 2010 9:00 pm
Ladies,
On my Casita, when the temps were forecast for anything below 25 for more than 12 hours and less than 72 hours I did a preventive winterizing. I only had to do this twice during the 18 months that I had my Casita. The Casita was in storage and didn't have access to electric and I wouldn't run the furnace without being around.
I winterized my rig by doing this in this order:
1. Emptied the commode by not having the water pump on and flushing until there was no water running and left it in the black holding tank if there was more than just that water. In other words, I wanted enough material in the tank that it would be difficult for it to freeze and crack the tank. (more material as opposed to less material)
2. Opened the hot and cold water faucets until the water no longer ran out. Leave the faucets open. Again, I wanted enough material in the grey tank that it would be difficult for it to freeze and crack the tank.
3. Turned the shut off valve to the hot water tank closing that off from being emptied. That holds 6 gallons and normally won't freeze in 3 days as it is semi protected by being located in the cabin area of the TT.
4. Took my little air compressor that I had for my TT tires connected it to the 'blow out plug' that I had put on the 'City Water' connector. Turned the air compressor on and that blew the water in the lines out of my pipes.
5. I had the extra fresh water tank in my rig and if there was a little water I added more with the idea that bulk freezing was less likely. I tried to leave room for it to expand upward if it was going to freeze - in other words I didn't overfill it, just added a couple gallons of water. Don't know if my reasoning was right or wrong, but it worked for me.
6. To keep the "U" or "J" joints of the drain pipes from freezing, I had a choice of the pink stuff or some rot gut whiskey (I used Bourbon) - not good whiskey stuff but truly rot got and I poured that in the kitchen sink, the lavatory and the shower drains.
That should get the water out of the lines and leave water in the hot water tank. It puts water in the black and grey holding tanks and the fresh water tank if you have one. It puts material (alcohol) into the drains that normally does not freeze.
Took me about 45 minutes to do that. About 30 of the minutes were spent trying to get the blamed hot water valve turned to the shut position. I mean it was under the driver side dinette seat and you had to pull the little door up and figure out how to get a light in position so you could find the thing. I put a clothes pin on it when I turned it back to the open position so I could find it if or rather when I needed again. The biggest concern on those guys it that you have very little insulation in those rigs and the water pipes are all on the outside edge of the rig.
When I finished that I went home and drank the good whiskey (Wild Turkey bourbon) and prayed the Casita (Birdie's Egg) would be okay.
2012 Class A Winnebago 30T (is for sale)
Coach House Platnium (my now rig)
Chevy HHR