Using electricity, not chemicals to accomplish the ion exchange process, LINX systems from Pionetics are programmed for feed water quality optimizing performance, resulting in recovery rates of 55-90 percent. In contrast, RO recovery rates range from 3-14 percent in normal household usage depending on feedwater temperature and pressure, which can vary. LINX’s Dial-A-Taste feature allows consumers to dial the taste of their water — adjusting the electrical current providing up to 95 percent TDS reduction.