Sounds like copper to me too. Does your pool have a bit of a green haze to it also? Copper is not fun to get rid of and leads into more water problems like I just went through. Took us about 2 weeks to recover from our copper issue and get things started back to normal.

I've heard the 3 most common causes of copper are:

1) Pools with heaters (this was my problem)
2) Using too much algecide (the kind that contains copper)
3) Filling with well water

Considering the fact that you just treated an alge issue, you might want to take a peek at the back of your algecide bottle. If it contains copper and your wife's hair is turning green you might want to look at getting some metal control. Remember you can't treat metal until your chlorine level drops to below 1ppm.

My fingers are crossed for you that its not copper though. One thing to also check... anyone getting blue fingernails? I've heard that is also a sign of copper in the water. Bring it to your local pool store and make sure they test for it. We found out that our pool store doesn't normally do so unless you ask. That's how ours got out of control.