Before you add chlorine to your aerobic septic system, make sure you go through the following tips from TGWasteWater.

What kind of chlorine should you use for wastewater disinfection?

When you want to disinfect secondary treated wastewater effluent and you want to use chlorine for septic systems, it is imperative that you use the chlorine table is comprises of calcium hypochlorite. Also, it should have the certification logo from a recognizable body such EPA. They are extremely reactive and can destroy up to 99 percent of the bacteria available in the effluent for not more than ten minutes. You should always ensure that you adhere to the warning and precaution information of the chlorine tablet producer to protect the system and yourself as well.



You should ever use swimming pool chlorine tablets when disinfecting the system. The chlorine found in these tablets comprise of trichlorisocyanuric acid. Also, swimming tablets take a longer time to dissolve compared to the calcium hypochlorite and don’t infect the effluent completely. Furthermore, swimming-pool tablets are more likely to explode because they contain an explosive agent known as nitrogen chloride, and when immersed in water, they react quite exponentially. Also, they don’t have any certification or approved by the EPA, and therefore, can’t be used as effluent disinfection.

Chlorine tablets for septic system are added through the access port on top of the system tanks. Normally, the system features two access ports, one to access the aeration compartment and the other one for chlorine. Depending on the model, the ports are either secured by latched caps or screw on caps. Normally, chlorine tablets get into the port that is near the spray heads. One many models, there is a tube that enters the chlorine port chambers and certain wires.