I have read this only today ...

I have read this only today and thus could read all answers, since there is no volatile matter in water, smell from such compounds looks remote. High dose of chlorine, sometimes can smell and it is also not pleasant smell. It is possible that smell of vinyls and lot more used in furnishing may be responsible for this smell being recognised as cat urine smell, where as it could be chlorine smell due to high dose. 

To avoid such situation is to have product that maintains free residual chlorine to about 0.5 mg/L (ppm) continuously. I have developed a unique product called Chloritard, proper pouch of chloritard once suspended into overhead water tank, maintains free residual chlorine to about 0.5 ppm for a period of one month, after one month, replace the pouch. This product is being used by many in India successfully for last 25 years or more and there is no single failure once proper pouch is selected.

V. M. Kulkarni