With integrated Autocontrol systems

Dosing station for calcium hypochlorite, acid and flocculant completely with autocontrol system CPR Touch XL for free chlorine, pH-value, redox and temperature. For the disinfection and flocculation of swimming pool water. 

Chlorine dosing directly from integrated hopper. Acid is dosed into the system directly from the canister to correct the pH and to avoid scaling. Chlorine and acid are dosed separately at intervals to the dissolving system from where the chlorine solution is conveyed by a venturi nozzle to the pool water. The dosing of the chemicals is controlled directly by the integrated autocontrol system. The booster pump of the GRANUDOS works also as metering water pump. The metering water is returned into the cycle via the dissolving system. The autocontrol system and the peristaltic pumps for flocculant and acid are integrated well accessible under a transparent cover at the front of the unit.


Technical Data

Electrical supply 230 V/AC 50 Hz 
Power supply 0,39 kW 
Water supply DN25 
Water outlet to injection point DN20 
Measures W 80 cm x D 60 cm x H 130 cm  
Weight app. 40 kg  
Dosing performance chlorine 0,1 - 2 kg/h  
Dosing performance acid 1 l/h  
Pre-pressure min. 0,2 bar  
Back-pressure max. 1,2 bar (optional 1,8 bar) 

Scope of delivery


Housing with retention tub: Solid one part rotational sintered PE shape containing all functional parts 

Chlorine dosing: Dosing hopper for chlorine granulate for 5 kg, dosing motor, dosing screw, knocker to support the dosing 

Acid dosing: Peristaltic dosing pump, suction lance with empty report of the canister, dosing valve 3/8“ in the dissolving system 

Flocculent dosing: Peristaltic dosing pump, suction lance with empty report of the canister, dosing valve½“ 

Dissolving system: Pre-filter d 75, flushing tank, booster pump app. 1000 l/h at 1,2 bar, venturi, mixing cyclone. Monitoring of the pump by pressure switch. Monitoring of the suction performance of the venturi. Level switch min/max flushing tank 

Control techniques: 

  • Coloured 7” Touch-Graphic display to indicate the current data and status of the unit 
  • Faults and alarms are illustrated by self-explaining icons 
  • All control parameters are adjustable to ensure optimal pool conditions 
  • Integrated test programmes for all functions 
  • Proportional control characteristic to ensure compliance with the selected set points 
  • Start-up automatic with pH preference dosing 
  • Input for external release, shock chlorination and ECO mode 
  • Alarm relay with non-volt changeover contact 
  • Operation languages: German and English 
  • Measuring value- and event storage (data logging) 
  • Interface: Modbus TCP, USB for data export
  • Remote indication & access via browser driven devices (e.g. tablet or smartphone - terminal device not incl.): Indication of the measuring values, current operational states, errors and alarms. Adjustment of the control and operation parameters


Measuring cell 

  • Compact acrylic glass block to take theelectrodes incl. flow regulator. Pressure resistant design for measuring water recirculation 
  • pH-electrode with high reliability reference system 
  • REDOX electrode with large and self-cleaning platinum round plate 
  • Free chlorine electrode consisting of: large and self-cleaning surface round gold plate and counter electrode with reference system Ag/AgCl 
  • Temperature sensor for temperature measurement 
  • Sample water valve 

To be provided by the builder

  • Power supply
  • Supply tubing and tubing to the injection point
  • Overflow/ drain in the plants room

Accessories/ Options

  • Adapter for bigger dosing hopper up to max 15 kg
  • Adapter for different 10 kg buckets
  • Buffer tank for GRANUDOS-PB function