ProMaqua guarantees hygienically clean water at the Parkhotel Heidehof
Bus-controlled treatment of swimming pool water. The luxurious new DAY SPA at the Parkhotel Heidehof in Ingolstadt invites guests to swim in shimmering blue water and enjoy its waves, saunas and steam rooms.
Its new water treatment and disinfection system from ProMaqua ensures that guests can enjoy crystal-clear, germ-free water in the indoor and heated outdoor pools as well as in the whirlpool.
ProMaqua uses its Dulcomarin II system to regulate water treatment in both the indoor and outdoor pools as well as in the whirlpool. Its central display unit is installed on the ground floor and is easily accessible by staff, ensuring that water readings can be made without personnel having to go down into the basement where the actual metering systems are installed. The measuring and control unit Dulcomarin II is designed to handle the specific requirements of swimming pool water treatment, while the multi-channel controller is also ultra-versatile when combined with different measuring and actuating modules.
ProMaqua uses a standardised CANopen bus system to network the sensors to the control unit. The multi-channel unit measures and regulates the pH value, redox potential, chlorine concentration and temperature in each of the three pools in the Parkhotel. The precise quantity of disinfectant required is then metered into the pool water by a total of eight Beta series solenoid metering pumps, each of which is linked by the CANbus to the Dulcomarin II, ensuring that key pump data, such as error messages, level information or stroke length changes is continuously transmitted to and displayed by the central display.
Precise concentration of disinfectant
A unique feature of the water disinfection system in the Ingolstadt hotel is that a 5% solution of calcium hypochlorite is fed into the water on site in place of sodium hypochlorite – with a PMCa500 metering station from ProMaqua calculating the precise concentrate of calcium hypochlorite. The system not only measures the level of free chlorine as required, but also measures the total level of chlorine in the Parkhotel Heidehof. This allows the operator to check that the level of bound chlorine does not exceed 0.2 ppm and is also a key indicator that the water treatment system is operating correctly.
Conclusion
Coordinated components for the measurement and regulation of key water parameters, accurate generation of an effective disinfection solution and precise metering with efficient metering pumps together guarantee swimming pool water that is consistently hygienically clean, while the resulting lower use of chemicals further helps to conserve the environment. Central control and display unit functions ensure that current water parameters in individual pools can be adjusted and controlled at all times.
