In the snow- tanks below freezing
I'm in northern Arizona. Got a blizzard hit in Williams AZ. It's suppose to go down to 22 tonight. A guy told me I should dump both my tanks and put a gallon of RV anti freeze down the tanks and not...
Forum Discussion
Hi 2oldman,
Actually it is possible to "super cool" water to about -43.8 C (-55 f) without it turning into ice. Not likely to happen in the waste tank of an RV.
So yes, it is quite possible to have ice at 0 c and also water at 0 c.
What I was trying to point out is that to change from liquid to solid requires about 347 watts of energy to be removed from the container for every gallon of liquid. For those who are more used to a BTU measurement that works out to approximately 1184 btu's
As 750 watts is one horsepower--that is one heck of a lot of energy.
It also means that draining the tanks for a 'one night stand' with cold weather is not only fairly useless, but not even desirable. The less liquid there is the easier it is for it to freeze.
Actually it is possible to "super cool" water to about -43.8 C (-55 f) without it turning into ice. Not likely to happen in the waste tank of an RV.
So yes, it is quite possible to have ice at 0 c and also water at 0 c.
What I was trying to point out is that to change from liquid to solid requires about 347 watts of energy to be removed from the container for every gallon of liquid. For those who are more used to a BTU measurement that works out to approximately 1184 btu's
As 750 watts is one horsepower--that is one heck of a lot of energy.
It also means that draining the tanks for a 'one night stand' with cold weather is not only fairly useless, but not even desirable. The less liquid there is the easier it is for it to freeze.
