The Waterloo EC-P from Waterloo Biofilter Systems permanently removes phosphorus from residential and commercial wastewater streams using electrochemistry processes. These small units can be used for either retrofits or new installations at individual homes, and can be installed in combination with either advanced treatment units or conventional soil-based septic systems. It is simple to install and operate, and has a smart control panel that is easily configured for the desired level of phosphorus removal. The system requires no chemical addition, does not increase sludge production and uses little energy. Electrodes typically last for up to two years before requiring replacement. It effectively removes more than 98 percent of phosphorus before entering groundwater supplies. 866/366-4329; www.waterloo-biofilter.com.