Can I use swimming pool chlorine in my septic system?

NO, DO NOT USE TABLETS DESIGNED FOR SWIMMING POOL USE AS THESE MAY RELEASE AN EXPLOSIVE GAS CALLED NITROGEN CHLORIDE. When disinfection of secondary effluent is required, use a chlorine tablet made from calcium hypochlorite that is certified for wastewater disinfection by EPA. The tablets are very reactive and will kill 99% of the bacteria present in the effluent within 10 minutes. Follow all warning and precaution statements of the chlorine tablet manufacturer to protect yourself and the system equipment. .