Generally, water supplied by water authorities contains chlorine, the amount varies, often dependent upon the water table level and local conditions however, chlorine will be there. Other organic and inorganic matter is also present in many cases. POPPITS brand – Quick Fix – chlorine free oxidiser is used to oxidise or “burn up” these contaminants and leave the water free of chlorine and ready to balance and then sanitise. Poppits Quick Fix is recommended when initially starting up your new spa and also for weekly maintenance.