This valveless metering system was designed by Fluid Metering for accurate, maintenance free injection of liquid sodium and calcium hypochlorite for water treatment. The primary pump injects liquid hypochlorite directly into the water main. The secondary pump removes out-gas bubbles from the system preventing loss of prime. The Chloritrol will self prime against pressures up to 9 bar. Internal components are made of sapphire-hard ceramics for long term drift-free accuracy.