New! Innovative water treatment system for chlorine, pH and Redox.

The WATERFRIEND exclusiv Chlor MRD-3 system is the new improved version of the successfull model WATERFRIEND exclusiv MRD-2. It features a large colour touch screen display with a comfortable graphic user interface and an integrated web server.

This innovative technology allows the remote access via internet, computer network or a smartphone.

The standard delivery includes:

  • MRD-3 control unit (plastic housing, wall-mounting installation)
  • Chlorine level control sensor (amperometric)
  • 2 electrodes mit osf-amplifiers with RGB coloured light indicator
  • 1 water flow rate meter
  • 2 dosing pumps (max 10 l/h) with variable speed motors
  • 2 suction lances with floating switch
  • illuminated osf flow chambers (transparent) with colour-coded calibration
  • 2 teflon injectors
  • 3 different buffer solutions (50 ml)
  • test water pipe and dosing pipe, 10 m each
  • 2 test water collection faucets
  • measuring cup
  • fittings and small parts

The high performance dosing pumps are driven by the speical motors with adjustable speed. It is possible to adjust the flow rate from 0 to 10 l per hour.

The new MRD-3 system is available with 2 or 3 dosing pumps.
The intelligent speed control allows to flexibly suit the system to various size swimming pools, different water temperature and user profiles.

  • WATERFRIEND exclusiv Chlor with 3 pumps – item no. 310.000.0840
  • WATERFRIEND exclusiv Chlor with 2 pumps – item no. 310.000.0860
Lance pH, with float switch
item no. 209.000.4850
with black canister lid, suction strainer, check valve and empty signal contact. Including 2m connection cable.

Lance chlorine, with float switch
item no. 209.000.4851
However, with a white tank lid

Buffer solutions
Set for pH and Redox. Consists of one bottle with 50 ml pH4, pH7 and 468 mV each.
Item no. 310.000.0801
WATERFRIEND electrodes

  • pH-electrode – item no. 212.060.0700
  • Redox-electrode – item no. 212.060.0710
Chlorine sensorfor precise chlorine level control, for MRD-3
Item no. 226.040.1250
Injector of teflon
Injector 1/2″, black
Item no. 212.060.0720
Replacement pump tube
For dosing pump
Item no. 221.103.0177

Filter insert (inox steel)
for test water filter
Item no. 209.000.4861

Dosing tube
10 m tube 6×4
Item no.121.090.9110

The colour-coded LEDs located in the flow chamber behind the electrodes show fast and reliably the current calibration state. Quick information at a glance!