I found some ponding water under my bathroom sink. Here is a pic of where I see the water dripping down from. Tough to see if it's orginating from the valve or higher up. I suspect higher up due to the deposits, but couldn't feel any water dripping down it when I tested. Thoughts on how I should tackle this? Obviously this is my first time doing something like this. :)
Thanks in advance!
http://i36.tinypic.com/2h58h2a.jpg