Originally Posted by yogurt_21
i use rv/boat antifreeze, car antifreeze even at low mixture will erode away at the components. the rv/boat antifreeze is available at the auto store for about 3$ a gallon and is already made for plastic systems so no need for using any water in the loop, just pure fluid.
do you have any evidence/proof to back up this statement?
use straight pure antifreeze/coolat.
if youre loop contains only copper (no aluminum blocks or fittings) its best to use straight pure distilled water -it is THE BEST