Why spend even $1 on chlorine dioxide for every flock when you can spend $0? The HYDRA water treatment system from TOMIGUNN has no costs per flock. Your only expenses are replacing the UV lamp every 9,000 hours and the filters every 6 to 12 months. A UV lamp costs about $59 (plus shipping). Each filter runs $30 to $100, and the system uses two of them. That's it. We customize your HYDRA based on a simple water test—for example, adding iron filters if your water has high iron levels. What is HYDR

Chlorine Dioxide Two Uses - Chemistry | Shaalaa.com