IronMike's Preferred Charity

  • Special Operations Warrior Foundation
    Mike swims in support of the Special Operations Warrior Foundation. To find out more about the SOWF, click on the below symbol. For more information on Mike's swims and to donate to this wonderful charity, please click on the above link. And thank you!

Critical Swim Speed

  • SCM
    29 Mar 2013: 1:41.52
  • SCM
    10 Feb 2013: 1:43.09

« 10,000 yards completed in a pool. A really small pool. | Main | Best month ever »

29 March 2012


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Donal (Loneswimmer)

The blue green colour looks like verdigris, oxydized copper. I'm no chemist/metallurgist, but I wonder if there's copper in the water? I've never heard of this, I'd love to know!

Donal (Loneswimmer)

Quick check says it might be copper. It can be added as a sulphate to turn water blue, or it might be leaching in from dissolving copper-heating coils or it might be used as an algicide. I think it's used as an algaecide if they aren't cleaning the pool properly.

Doesn't look like it's dangerous, but the pool should chelate (sequester) it out or it damages everything if they aren't adding it themselves. Oh, it might change your hair colour!


Yikes, thanks Donal. That does explain what happens to the hair of all the toe-headed embassy kids here!

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