Building your own brew stand will teach you a few things. And it turns out one of those things is that when you think you’ve got everything working, you’re wrong. These things are a bouquet of joy and frustration… rarely at the same time.
So what’s a guy do when his solenoid valves don’t quite sound right? You do what any sensible home brewer does: you send them back for warranty. But we’re not talking about you, and we’re far from sensible. So we hit the tool box and ripped these valves apart to expedite the fix.
http://www.craftbrewing.com/blog/fixing ... id-valves/