AqueousPro™ 50 is a professional grade Water Sanitiser used for purifying drinking water from Microbial contamination in rainwater tanks and similar applications. The active ingredients are included in the Australian Drinking Water Guidelines as Chemicals recommended for use in water treatment for use in drinking water.

AqueousPro™ 50 is suitable for water, water tanks, pipework, and tapware sanitisation. The active ingredients are Hydrogen Peroxide (H₂O₂), stabilised, as well its disinfecting effect, catalytically enhanced several times over by the addition of a minimal amount of silver ions (Ag).

H₂O₂ reacts with water quickly. After application H₂O₂ decomposes completely (100%) into water and oxygen, with no potentially harmful by-products such as trihalomethanes. The minimal amount of silver ions remaining after the H₂O₂ has broken down inhibits the multiplication of germs and has additional residual properties, especially in water systems.

How it works:

What are biofilms?

Biofilms consist of a mixture of bacteria, fungi, protozoa and/or algae that live in a symbiotic community with and off each other. To us, they appear as a layer of slime or coating of varying thickness, colour and consistency, which forms predominantly at boundary layers of liquid and gas phases, such as pipelines, cooling towers, drains and other water-carrying systems. The typical slime matrix of a biofilm consists of extracellular polymeric substances (EPS) produced by the microorganisms, which can form hydrogels.

When common hydrogen peroxide (H₂O₂) comes into contact with biofilms, it tends to decompose very quickly. At times, this can severely limit its effectiveness. To unleash its optimum effect, the hydrogen peroxide must therefore be highly stabilised, as is the case of AqueousPro™ 50, the addition of silver ions (Ag). This makes it possible to inhibit the decay of the hydrogen peroxide for a while after initial contact with the biofilm surface, thus allowing the peroxide to penetrate the structure of the biofilm. Reactive oxygen is then separated from the peroxide through the catalase of the biofilm. The bubbles that form have a physical/mechanical effect in addition to their oxidising effect on the microbial cell envelopes due to the volume increase of the bubbles in the biofilm matrix, it is literally ruptured and torn apart. The blown-off biofilm fragments detach from the structure and leave holes, which, in turn, make it possible for more peroxide to penetrate the structure. Ideally, the entire biofilm layer is removed and dissolved within a short time.

6.1 Application/Contact Period

AqueousPro™ 50 is best applied by dispensing the required amount of product, directly into the tank, at the point where the water is returned to the tank during the QuadClean™ filtration/oxygenation stage. Or added via the intake of the portable Aeration System.

Contact Period: Minimum 4 Hours is recommended, depending estimated ‘load and biofilm’ levels with the tank and pipework of the property. During this time, ensure that no water is taken for drinking or food preparation etc (I.e. unless the property has a UV Filtration System installed).

Glossary:

Biofilm = Slimy deposits of bacteria, fungi and protozoa.
Bacterial Load = The number and type of microorganisms contaminating an object eg. Water Tank, Pipework and tapware.

6.2 Application and Testing Guidelines

AqueousPro™ 50 is the most important component of the QuadClean™ process. The addition of this professional grade sanitiser sets PWS apart from our competitors, who merely clean tanks by extracting the sediment to waste only but fail to provide or adequately complete sanitisation treatment.

To ensure quality assurance, the bacterial load (contamination of bacteria, fungi, algae, viruses, amoebae and biofilm etc) of water after it has been filtered/oxygenated and sanitised with AqueousPro™ 50 is achieved only through the use of test strips to measure and record the residual concentration of AqueousPro™ 50 after an extended period of time after dosing.

Best results

Follow these Guidelines to gain optimal benefit from using AqueousPro™ 50.

Knowledge points

The residual is the concentration of AqueousPro™ 50 remaining in the water after it has been treated. Residual = remaining concentration.
The initial concentration measured 5-10 minutes after dosing will decrease over time in accordance with the degree of contamination in the water.
The residual will decline as contaminants are oxidised to a level where there is, (a) either no residual (contamination remains), or, (b) some residual remaining (water is fully sanitised).
The higher the level of contamination, the corresponding additional volume of AqueousPro™ 50 required to sanitise the water will increase commensurately.
Test strips can be used as a measure of sanitiser quality: if there is a residual colour >10 ppm after 24 hours, biological contaminants should been adequately sanitised.
Ideally a residual >5 and <15 ppm will be evident after 24 hours contact time.
If nil residual, additional AqueousPro™ 50 treatment will be required to effectively sanitise the water.
Any addition of untreated water (e.g. after rain) during this period will also reduce the residual and effectiveness of the sanitiser in the tank.
If no additional water (overnight rain etc) is added and there is a residual >10 ppm showing after 24 hours, and the tank and water content has been well cleaned, the residual should decompose slowly. AqueousPro™ Test strips can be used by the client to confirm residual levels as required.
Ensure AqueousPro™ Test Strips are kept dry and out of sunlight in the sealed container at all times.

Dosing, measurement and application

Estimate water volume and quality/condition of water (Eg. good, moderate, poor).
With aid of the dosing chart, refer to your Quick Reference Guide manual, slowly add assessed (estimated) volume of AqueousPro™ 50 required to water, while it is still agitated during filtering/aeration, to thoroughly mix throughout the tank immediately.
Use the AqueousPro™ test strips to test the residual of AqueousPro™ 50 in water.
Measure residual in the tank after 20 minutes and record. This should be >10 ppm. Request client to flush water through all taps in residence which will sanitise and remove biofilm from pipework and taps.
Leave a test strips and instructions for client to test the residual level the following day. After 24 hours.
Request owner to flush water through the pipework and tapware for several minutes (to draw in sanitised tank water), then measure the colour and residual concentration.
Flush pipes in house at all taps to remove sanitised water. Sometimes water may initially be visually dirty as biofilm in pipes is dislodged and flushed through.
Client will re-test after 24 hours to ensure adequate residual requirements are achieved.

Safety always comes first

Always wear protective gloves and goggles times when handling any chemical.
AqueousPro™50 can inflict burns if it comes in direct contact with skin.
Always flush immediately with water if there is contact with skin, even droplets.
Ensure absolute care when dispensing the product.
Do not allow others in close proximity when you have product in an open container (e.g. when dosing a tank), especially children.
Do not climb up a ladder with chemical unless everything is safe and secure.
Keep all chemicals in a safe and secure place at all times.
Do not pour AqueousPro™50 directly into guttering or downpipes etc. The Chemical reacts to organic materials, and if the pipes/gutters are not clear, this can start a fire or melt pipes (we have seen this happen!)
For information on Safe Handling of Chemicals, refer to Module 3, Section 7.5.

6.3 AqueousPro™ 50 Container Maintenance

AqueousPro™50 comes in a 20Lt Container (weighing 25Kg). Should Franchisee’s require additional containers for decanting purposes, Pristine Water Systems will make available additional 5Lt containers as required.

As AqueousPro™50 is classed as “Dangerous Goods” it is important that the container you decanter into be a specific grade/quality Eg. 5Lt Dangerous Goods (Black) Jerry Can – 190 x 135 x 295mm. The lid also is required to be a “Vent Safe” vented lid.

Labels for decanting and 5L bottles are available to order in PODAC. Refer to Module 2, Section 4.0 for ordering process.

Replacement 5Lt jerry can’s, vented lids and new vinyl AqueousPro™50 labels are available from PWSA head office and can be ordered via our on-line ordering system as required.

By law, all chemicals must be labelled with MSDS sheets current and available at all times. It is the Franchisee’s responsibility to ensure they abide by all Workplace Health and Safety rules and regulations.

6.4 AqueousPro™ 50 & Disinfecting Tanks

Details on how to clean Tanks is detailed below in section 7.0 of this Module.

However, one of the steps in the PWS QuadClean® process is to sanitise the tank following a vacuum.

For dosage rates, please refer to Appendix 8, or your Quick Reference Guide booklet.

6.4.1 Application Process

Estimate the tank volume and assess the water quality after cleaning before adding AqueousPro™50.
A higher dose rate may be required to eliminate excessive bio-load (contamination) in water.
Use the chart as a guide to determine water volume and appropriate dose rate
Use test strips to determine the residual concentration after 1 to 2 hours.
If the residual level has dropped quickly, the water quality is obviously poor and may require re-dosing.
Re-dose on the day, or if possible re-test the following day and add more as required.
Aim for 10 ppm as a minimum.
Introduce AqueousPro™50 in the domestic concentration to the house owner for on-going water purification.
Explain the relationship between clean water entering the tank, regular cleaning, purification and drinking water quality.

EXAMPLE 1

A 20,000 litre tank is half full after cleaning. The water is fair quality and prior to cleaning did not have much sediment and no dead animals.
An initial residual of 20 ppm is chosen (which will reduce the biological load effectively)
To achieve an initial concentration to 20 ppm, select the row with 10,000 litres and 20 ppm (= 0.4 litres).
If this has reduced to < 5 ppm after 24 hours, additional treatment may be required.
If the residual remains > 10 ppm after 24 hours, the water is adequately purified.

EXAMPLE 2

A 40,000 litre tank is half full after cleaning. The water quality is poor and prior to cleaning did not have heavy sediment and no dead animals.
An initial residual of 30 ppm is chosen (which will reduce as the biological load effectively).
To achieve an initial concentration to 30 ppm, select the row with 20,000 litres and 30 ppm (= 1.2 litres).
If this has reduced to < 5 ppm after 24 hours, additional treatment may be required.
If the residual remains > 10 ppm after 24 hours, the water is adequately purified.

6.4.2 Dosage Rates

With the tank vacuumed and water filtered, we apply AqueousPro™50 into the tank. The following dosage chart is used to determine how much is required:

6.5 AqueousPro™ 50 & Sanitising of Water Supply Systems/Lines

When assembling or supplying a filtration/sterilisation system, one of the first steps is to disinfect the lines to ensure the newly installed system can work effectively. What is the point installing a sterilisation unit if the problem is left behind in the pipework?

That’s why it is very important to sterilise the plumbing before the customer has their filtration system installed.

The following provides a guideline to sanitise and sterilizing the water supply system prior to a filtration/UV system being installed by a licenced plumber.

6.5.1 How to Sanitise the WOH prior to UV Set-up

It is important to note that as a UV system has no residual, it is wise to make sure that the entire distribution system is free from bacterial contamination prior to installing and turning on the UV.

Sterilize the tank heavily.
1. Typically an installation of a filtration/UV system will occur after you have conducted a tank clean service
2. Allow 15 to 20 minutes for adequate disinfection.
Run all taps in the house to flush the AqueousPro™50™ through the supply lines
1. This may take a few minutes
2. Monitor water for any debris, colour, smell. The disinfection process will cause any sediment to dislodge and flow through
3. Check any taps that have aerators or end fittings for collection of sediment
4. Check outside taps, dishwashers and washing machines as well.
5. Run the water until you can identify it is clear of debris
Test the water for AqueousPro™ (H₂O₂)

This procedure will demonstrate to the customer, a high degree of efficiency, very rarely if ever, practiced by your opposition.

Always clean and sanitise housings when changing filters
Remove Housings to the kitchen sink and clean thoroughly with warm water and detergent, using the bottle brush provided.
Using spray bottle provided, spray a 7.8^ solution of AqueousPro™50® to interior of housing before replacing new cartridges

6.0 AqueousPro™ 50 Water Sanitiser

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Module 1 - The Franchise System

Module 2 - Administration and PODAC/ITF

Module 3 - Technical Information and OH&S

1.0 Background of the Water Industry

2.0 Australian Drinking Water Guidelines (ADWG) Introduction

3.0 Common Water Borne Diseases

4.0 Chemicals and Substances found in Water

5.0 Pristine Water Systems Chemicals and Treatments

6.0 Water Testing/Analysis & Results

7.0 Industry Certifications

8.0 Safe Work Australia / Workplace Health & Safety / Occupational Health & Safety

9.0 Filtration & Ultraviolet Products

10.0 Types of Tanks

11.0 Other PWS Products & Equipment

12.0 Glossary of Terms

Module 3 - Appendix

Module 3 Quiz

Module 4 - Operations - Standards

1.0 Introduction

2.0 The PWS Process

3.0 Planning your Work Schedule

4.0 Planning Product Ordering

5.0 Water Testing

6.0 AqueousPro™ 50 Water Sanitiser

7.0 Water Tank Cleaning

8.0 Filtration / Sterilisation Supply (Assembly)

9.0 Ongoing Service and Maintenance

10.0 PWS Standards

11.0 AqueousAir™ Assembly & Installation Instructions

Module 4 - Appendix

Module 4 Quiz

Module 5 - Sales, Marketing, Quoting & Invoicing

1.0 Introduction

2.0 Advertising & Marketing

3.0 Selling PWS / Selling Yourself

4.0 Assessments & Quoting

5.0 Invoicing

Module 5 Appendix

Module 5 Quiz

Module 6 - Equipment Maintenance

1.0 Introduction

2.0 Vehicle Maintenance

3.0 Equipment Maintenance

Module 6 Quiz

In-Field Quick Reference Guide Content