[Reefmaster]

steve
you found the irrigation solenoids i was talking about. [img]images/smiles/icon_biggrin.gif[/img] those are what we are going to use for automating water changes etc.
isn't the stainless on the backside of the piston so it won't be in contact with the flow?? i don't recall for certain. as for rusting, i wouldn't worry about it too much but that's just me - a bit of silicon would solve the problem enough for my liking.
i think they are damn near silent aren't they? and i think they are designed not to snap shut so the water pressure doesn't result in a hydraulic hammer through the system in the house but don't know that for sure.
hey if you're building a flow diverter maybe you could build two and i would pay ya some $$ for one. shane