hard water issues

Hey guys and gals,
  I have naturally curly hair, but since I've studied abroad in London, my hair refuses to curl!  I'm pretty sure it's the extremely hard water here at the dorms having its effect on my fine/thin hair, but even when I use mousse and scrunch--no matter how much I use and scrunch--my hair flattens out by days end.  Does anybody have any ideas on how I can bring back my curl?  It was curl with attitude, I loved it! 

  I'm also a bit concerned because my friend has pressured me into going to the Vidal Sassoon School with her for haircuts (I'm in dire need of one and it's cheap...so I agreed).  I'm afraid if they don't see my hair in it's curly state, I'll get a cut that would be difficult for when my hair can curl again back in the States.  Is bringing a picture of myself when its curly a good idea? 

Thanks in advance!

ita with anaissatin but another thing that i found to work for me is simply adding liquid aloe vera (aloe vera gel(liquid) or aloe vera juice) to my conditioners that i use daily for co-washes. I have great results and my dryness/breakage issues were resolved in a couple of weeks. I still do this and love it.