Is there an alternative to 100% pure distilled water as a coolant? I'm using the Blood Red EKWB Cryofuel coolant concentrate and I'm wondering what kind of water I can mix it with. The closest I can find to distilled water has about 0.2mg of sodium per 100ml of water. I wonder if that will do, or if I can use Car Battery Water as I heard that it is pure distilled water