I get cramp mostly in a swimming pool but why do we get cramp in the first place????

Question: I get cramp mostly in a swimming pool but why do we get cramp in the first place????
- Keywords:
  cramp,
  pool,
  swimming
Asked by cornwallxxx to Tim on 29 Jun 2012.
- Tim Stephens answered on 29 Jun 2012:
  
  I don’t really know. I think it’s a spasm in your muscles, but this is probably a good question for the folks in the Pathology Zone.

Question: I get cramp mostly in a swimming pool but why do we get cramp in the first place????