The Waterloo EC-P from Waterloo Biofilter Systems permanently removes phosphorus from residential and commercial wastewater streams using electrochemistry processes. These small units are ideal for both retrofits and new installations at individual homes, and can be used 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 very little energy. Electrodes typically last for up to two years before requiring replacement. More than 98 percent of phosphorus is removed before entering groundwater supplies. 866/366-4329; www.waterloo-biofilter.com.