Stop water from freezing

[RBexteriorcleaning]

Hey everyone. 

Did I read somewhere that you can stop something in to the water that stops it from freezing and keeps the purity?

Thanks 

 

[Part Timer]

Alcohol, personally prefer to put a radiator in the van and drink the alcohol. If you drink enough alcohol but the water freezes because the radiator went off you really don't give a ?

 

[Part Timer]

As you could probably tell I'd put the radiator in the van last night and had a sherbet or two. Isopropanol works, here's an old post on here.