A tablet chlorinator usually consists of a basin where the tubes containing a stack of chlorine tablets are placed. The top of the tubes should extend above the ground surface and be protected by a cap. The bottom tablet in the tube is in contact with the wastewater flowing through the basin. As that tablet dissolves and/or erodes, the tablet above falls by gravity to replace it.
A tablet can dissolve quickly or slowly, depending on the volume and flow of wastewater coming into contact with it, the properties of the tablet, and the length of contact time. A balance must be struck regarding the contact time in the chlorinator basin. If the contact time is too long, the wastewater becomes over-chlorinated and the tablets are consumed rapidly; if the contact time is too short, the wastewater is not disinfected sufficiently.
Use only chlorine tablets that are approved for use in wastewater. They are made of calcium hypochlorite (Ca(OCl)2). These tablets dissolve in the wastewater and release the hypochlorite which then becomes hypochlorous acid, the primary disinfectant.
When adding a calcium hypochlorite tablet, add no more than three at a time and DO NOT fill up the chlorinator. It will cause a huge mess, possibly restrict flow thru the system and waste expensive chlorine.
According to the EPA spokesman, use of swimming pool chlorine products in the treatment of wastewater effluent is a violation of Federal Insecticide, Fungicide, and Rodenticide Act Sections 136a-2g and 136j(a)2g. The FIFRA regulations essentially state anyone who is using a chlorine product for applications other than those stated on the product’s labeling is potentially subject to a fine and/or imprisonment.
…But, it is okay to swim in water utilizing pool type chlorine!? Hmmmm?