Measurement and control instruments for monitoring the hygiene parameters of free chlorine, pH value and redox voltage (ORP) are nowadays state-of-the-art technology. With its DEPOLOX® Pool system, Siemens Water Technologies offers sensors for combined chlorine, total chlorine, conductivity, temperature and feed rate display. To adapt the DEPOLOX® Pool system as quickly as possible to the prevailing pool conditions, the customer can choose between several process adapted applications, for example electrolysers or chlorine gas feed systems. Through its integral process control the DEPOLOX® Pool system provides total pool management.