I was thinking about buying a couple of valves and a controller, so i went to Rona to check them out. I took 1 appart and found that there are only 2 metal parts. There is a metal rod that guides the diaphram, and the second metal part is the spring that is on top of the diaphram.
from what I could determine, only the metal rod comes into contact with water. the spring is on top of the diaphram, so i can't see it coming in contact.
HAving said that, if we could find a plastic replacement for the metal guide, then the valves would be useable...
hmmm... i wonder if it's worth the try...
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