1. Indoor pool are a different beast, and there are a variety of issues usually not considered, that you REALLY need to consider.
2. There is no such thing as a "chlorine allergy"; if there were, you couldn't drink tap water or shower without problems -- this year, I finally found the data to put that claim in its coffin.
3. There ARE problems with monochloramine, when it's been used to replace chlorine, though they may not be true allergies. These problems DO show up from showering and bathing.
4. Using UV with chlorine can help avoid some of the problems that arise when chlorinating indoor pools, where swimmers regularly pee in the pool (ie, all competition pools, like the YMCA)
5. The threads below cover some of the info you need to examine.
http://www.poolforum.com/pf2/showthread.php?17276
http://www.poolforum.com/pf2/showthread.php?14395
http://www.poolforum.com/pf2/showthread.php?14621