01-24-2009, 03:12 AM
I ran across this. I thought it was fascinating:
"The disadvantage of deionized water is that it is very corrosive to metal. Since it has no dissolved solids in it, water will seek equalibrium with whatever it contacts. So water with a pH of 7.0 can dissolve metal pipe. Especially yellow metals like copper and brass. It is also very aggressive to mild steel or "black" iron, and forget about glavanized pipe. Piping that resists the effects best is PVC or glass."
"The disadvantage of deionized water is that it is very corrosive to metal. Since it has no dissolved solids in it, water will seek equalibrium with whatever it contacts. So water with a pH of 7.0 can dissolve metal pipe. Especially yellow metals like copper and brass. It is also very aggressive to mild steel or "black" iron, and forget about glavanized pipe. Piping that resists the effects best is PVC or glass."