Pool Water Disinfection Systems

When it comes to controlling the water chemistry of a pool, careful consideration should be given to ensure the equipment that controls your pool water quality, is of the highest quality, ensuring consistent pool water quality, bather comfort, extended equipment life and economical/safe operation.

Ian Coombes Australia Pty Ltd is proud to offer its range of renowned systems that have been specified, for use at Olympic complexes.

This page offers information on the following range of equipment:

Stenner Peristaltic Chemical Dosing Pumps
Medium Pressure UV Disinfection
Automatic Pool Water Chemistry Controllers
CO2 pH Correction

Stenner Peristaltic Chemical Dosing Pumps
Ian Coombes Australia Pty Ltd is able to offer a complete range of quality and reliable peristaltic chemical feeders with variable output ranges. The Stenner Pump is a positive displacement, self-priming chemical pump specifically designed to administer chlorine with minimum of maintenance and operator time. Models are available as fixed output units or with single and dual adjustable feed rates. These pumps offer the following benefits:

Precision pumping of fluids
No Valves
Completely self priming
Accurate variable outputs
Safe to use: chemicals are not exposed to air or to moving parts
Full parts and service in our factory

Medium Pressure UV Disinfection

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Disinfection of swimming pool water via medium pressure ultra violet light disinfection has become the standard in many parts of the world for chloramine destruction.

In 2003 we extensively trialled a Wedeeco medium pressure UV unit on the Passive (hexagonal) and Private Pools at the Hanmer Springs Thermal Reserve in NZ. This trial was very successful and after a positive report from the ESR verifying the benefits of the unit, the facility went ahead with the purchase of it.

ESR stands for Environmental Science and Research Ltd. This company was formed from the former government scientific department, The Department of Scientific and Industrial Research (DSIR). They are the foremost scientific laboratory in New Zealand.

The term "medium pressure" refers to the pressure inside the UV tube, it has nothing to do with water pressure etc. Unlike low pressure UV technology which has been around for years and used with less than favourable results on pools in the past, medium pressure UV technology creates many wavelengths of light which has a much enhanced ability to destroy chloramines and dangerous pathogens.

Medium Pressure technology offers the following benefits:

Offers excellent increases in water quality through the destruction of chloramines
Has the proven ability to destroy Cryptosporidium cysts and other dangerous pathogens found in swimming pool water
Requires a relatively small footprint so it is well suited to retrofits as well as new facilities
A wide range of units are available to match the required duty with a suitably sized unit that is capable of providing the desired results
Very safe, especially in comparison to Ozone
Low maintenance costs, especially in comparison to Ozone
Surprisingly low capital value, especially in comparison to Ozone

Automatic Pool Water Chemistry Controllers
For commercial pools we use the Strantrol range of controllers as we have found these to be the most accurate, reliable and best suited to the rigors of commercial use. From the range of controllers available we suggest that the following two controllers are well suited to most applications.

There are also higher specification models available that also control filter processes, such as backwashing etc.

Strantrol System 3i
The Strantrol System 3i controller utilizes High Resolution Redox® (HRR) technology to directly measure the rate of oxidation in pool water regardless of the pH, temperature or bather load, feeding only the amount of chemicals needed. The controller responds continuously to actual pool conditions with precise chemical dosages resulting in pool water that is clear, nonirritating, and safe.

Automatic chemistry control 24 hours per day
Reduces chemical cost
Extends the life of pool surfaces and equipment

Siemens Ezetrol
The Siemens Ezetrol Free avaliable chlorine and pH controller is packed with advanced water treatment and management features for the professional aquatic facility manager.

Utlising the Ezetrol chemical measurement cell, which houses the pH and optional Redox probe, the Ezetrol gaurantees precise measument in compliance with DIN 19643. Operation of the Ezetol measuring cell comes without the need for buffer solutions ensures low cost of ownership and as the 3 electrode cell is hydromechanically cleaned provides long term stability and low maintenance attendenace

Advanced Automatic chemistry control 24 hours per day
Free Avaliable Chlorine Display in ppm
Optional Redox probe
Crystal clear water by disinfection control with pinpoint accuracy

CO2 pH Correction
Using CO² eliminates storing and handling of dangerous acids and CO² does not create corrosive fumes that can damage other equipment located in the plant room.

Carbon Dioxide is a naturally occurring gas that is present in the air we breathe and is used by many plants to make their food. CO² is used by many municipal water treatment plants for lowering pH.

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In water the CO² forms a mild carbonic acid and it is impossible for a runaway CO² feeder to lower your pool water PH below 6.8 Therefore your water will be safer to bathers and less damaging to equipment, plaster and grout.

Automated control 24 hours per day
Crystal clear sanitised water
Savings on chemicals
Convenient and safe to use