Watersens Chlorine & PH Automatic Pool Dosing Systems

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Watersens Chlorine & PH Automatic Pool Dosing Systems

Watersens Chlorine & PH Automated Dosing System

1. Description

The Watersens automatic dosing  system provides an easy to use touch-screen dosing system at a very low cost.

It can be used for private swimming pools with a water volume up to 250m3

It has simple and clear operation, whilst measuring and regulating the Chlorine and PH levels in your pool.

This is an automatic dosing system for indoor or outdoor pools.

It can be used for domestic or small commercial pools (the optional free chlorine probe should be used for commercial pools)

The system automatically monitors the level of chlorine and PH in the pool and adds the required amounts of chemicals to maintain the pool at the desired levels.

It has an easy to use touch screen control panel, which allows you to set the desired level and monitor the current levels of chlorine and PH in the pool.

The flow switch prevents the unit from dosing the pool when the pool circulation pump is turned off and there is no flow of water to the probes.

Watersens Chlorine & PH Automated Dosing System


2. Features

Watersens Chlorine & PH Automated Dosing SystemWatersens Chlorine & PH Automated Dosing System


The Watersens is available as two models:-

  1. Watersens pH/RX – stand alone dosing system, non internet enabled
  2. Watersens NET pH/RX – internet enabled model

Watersens Chlorine & PH Automated Dosing System

Watersens Chlorine & PH Automated Dosing System

3. Watersens NET Features

The Watersens NET allows the user to  look at the data from the pool in real time from your mobile device, allowing you to set notifications for set parameters. This data can be viewed for a 30 day period using the iPool app or web browser.

This allows remote monitoring of your pool chlorine, PH and temperature levels via either an app on a smartphone or via an internet web browser

The IPool Live App is available free of charge to all Watersens NET users.

Watersens Chlorine & PH Automated Dosing Systemipool-live-app-pic2.JPG


The app allows the user to remotely monitor the levels of chlorine and PH for the pool

Alerts can also be set so that if the chlorine or PH fall below or above a set level, an altert is sent to warn the operator.

This data can be viewed for a 30 day period using the iPool app or web browser.


If you do not have an internet connection where the Watersens will be located, an easy solution is to use a pair of powerline adaptors. One of the plugs goes into a socket in the pool plant room. The other plug goes next to the wifi router in the house.

An Ethernet cable is then connected from the powerline adaptor to the router and the ASIN AQUA to deliver internet connectivity.

Please contact us if you would like advice on the best way to get internet connectivity to the pool plant room.

4. Items Included

The Watersens comes with the following:-

  • Watersens touch screen controller
  • 2 x Injector nozzles
  • Plastic hose to deliver the chemical from the tank to the dosing unit and the pool pipe
  • Weight to go on end of hose in chemical container
  • RX Probe
  • PH Probe
  • 2 x valves for sample tubes
  • Instruction manual

Watersens Chlorine & PH Automated Dosing System

5. Optional Free Chlorine Probe

The Watersens pH/Rx model comes complete with probes to measure the chlorine and PH levels

The amount of chlorine in the pool is displayed in a mV reading on the screen.

By setting the desired mV value, the Watersens will add liquid chlorine to the pool to maintain the chlorine level at the desired value.

As an alternative to the redox probe for chlorine control, a free chlorine probe is available as an option

The free chlorine probe displays the amount of chlorine in ppm (parts per million) e.g. 1.2 ppm

The free chlorine probe is normally required for commercial pools

Watersens Chlorine & PH Automated Dosing System

6. Optional Water Temperature Sensor

You can also purchase a pool water thermometer and sleeve for the Watersens dosing system.

This is inserted into the pool pipework so that the pool water temperature can be measured.

Pool Water Temperature Sensor and Pocket
Connection of temperature sensor to pool water

7. Optional Chemical Bund Tanks

We recommend that you purchase two “bund” tanks

These allow the standard 20 and 25 litre containers of liquid chlorine and acid to simply be placed inside the bund tank

This makes it very easy to swap the containers when they are empty

The bund tank is designed to hold all of the 20 or 25 litres of pool chemical should the container leak or split.

The bund tank then prevents the chemical from spreading over the floor of the pool plant room which could cause damage to the equipment in the plant room.

We have two types of bund tank available:-

  1. Rectangular bund tank (without the raised back)
  2. Carboy bund tanks (with a raised back)

Rectangular Bund Tanks


The rectangular bund tanks measure 210mm high x 300mm wide x 500mm deep

Carboy Bund Tanks

The carboy bund tanks have a raised back

Watersens Chlorine & PH Automated Dosing SystemWatersens Chlorine & PH Automated Dosing System

These bund tanks should be placed on the floor whenever possible side by side.

Watersens Chlorine & PH Automated Dosing System


The dimensions of the Carboy bund tanks are 300mm wide x 440mm deep x 600mm high

8. Technical data

  • Power supply: 230V/50Hz
  • Power consumption: 14 VA
  • Fuse: T80 mA
  • Over-voltage category: II
  • Ingress protection: IP 50
  • Operation temperature and humidity: +5 to +40°C / 60%
  • Measuring water pressure: max 1,5 bar
  • Measured and regulated value: Free chlorine or Redox and pH
  • Dosing pump capacity: 60ml/min. / max. 1bar
  • Pool volume: max. 250m3
  • Weight: 2,2kg
  • Emplacement: wall-mounted

9. Availability

This item is in stock for immediate delivery – please allow 5-7 working days

10. Delivery

The price includes FREE UK delivery.

We can ship this item to any country. Please contact us for a shipping quote.

11. Warranty

The probes come with a 2-year warranty.

We recommend that you retain the packaging in case you need to return the unit to us for repairs under the warranty. 

The warranty will not apply where the dosing system has been installed incorrectly, or has been damaged by installation, so please advise of any problems as soon as possible.

12. Technical Support

We are happy to provide technical support for all dosing systems that we supply.

We can supply all spare parts to support all Watersens dosing systems both during and after the warranty period

13. Product Literature

Please see the Literature tab at the top of the page for the Brochure and User Manual downloads.

14. Watersens Video

15. Assistance?

If you need any assistance or advice as to which model would be best for your pool, please feel free to call or Contact Us

for more information, also see our FAQs page

All items sold in accordance with our terms and conditions

for all enquiries, please contact us at enquiries@heatpumps4pools.com



Please click the links below to download pdf brochures for these products


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The prices shown include FREE UK delivery for orders over £50 or £6.50 for orders under £50

We can ship to any country. Please contact us for a shipping quote.

The lead time on most items is normally on a 1-2 day delivery,  subject to availability. Please call to check availability.

Additional information

Weight20 kg