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The Davey AquaReviva Mineral and Salt Water Sanitiser is a sophisticated system designed to maintain the cleanliness and sanitation of swimming pools. It operates by generating chlorine from mineral or salt water, offering an alternative to traditional chlorine dosing methods. The system is available in several models: DAR14C, DAR20C, and DAR26C, catering to different pool sizes and requirements.
The primary function of the AquaReviva sanitiser is to produce chlorine through an electrolytic process. It utilizes an in-line electrolytic cell, which is a crucial component containing titanium plates. As water flows through this cell, the dissolved salt or minerals undergo electrolysis, releasing chlorine into the pool water. This chlorine then acts as a sanitising agent, eliminating bacteria, algae, and other contaminants.
The system incorporates a "Reverse Polarity" feature in its in-line cell, which helps minimise scale build-up on the titanium plates, thereby reducing maintenance requirements and extending the cell's lifespan. The control panel features POLARITY INDICATOR LEDs (A & B) that show the current polarity of the cell, which alternates over time to ensure even wear and efficient operation.
A key safety and operational feature is the paddle-type flow switch. This switch is installed on the cell and detects water flow. If the water flow is insufficient or absent, the flow switch will stop the sanitisation process, preventing the build-up of hydrogen gas (a by-product of chlorine production) and protecting the cell from damage. The system also includes a Thermal Cut-Out, which automatically disconnects power if the unit overheats, resuming operation once it cools down.
The sanitiser's output is controlled by a "Sanitiser Output Dial," which allows users to set the desired percentage of chlorine production. This dial varies the amount of time the cell operates during the filtration cycle, rather than altering the electrical current. For example, if the filtration cycle is 5 hours and the output is set to 80%, the cell will operate for 4 hours. Setting the dial to "0" turns the cell off, which is recommended during backwashing.
The AquaReviva system is equipped with an electronic control and warning system. An "Operation LED" on the control panel indicates the unit's status: green for normal operation and red for possible faults or damaging operating conditions. This LED also functions as a "Low Salinity Indicator." If the Total Dissolved Solids (TDS) level in the pool water falls below the recommended minimum, the Operation LED will turn red, alerting the user to add more salt. This protective system helps prevent damage to the cell caused by low TDS levels.
The unit also features an automatic time clock operation, allowing users to program specific ON/OFF times for the filtration and sanitisation system. This ensures that the pool is sanitised consistently without constant manual intervention. The "Selector Switch" on the control panel enables users to set the current time, program two distinct ON/OFF time sequences (Timer 1 and Timer 2), or manually override the time clock settings to run the system continuously ("Manual ON") or turn it off entirely ("OFF").
For optimal performance and longevity, the AquaReviva sanitiser requires careful attention to pool water chemistry. Maintaining recommended TDS levels (4,000 - 6,000 ppm) is crucial, as operating at low TDS can damage the cell and void the warranty. The system's warning indicator for low TDS helps users monitor this.
Proper installation is essential. The power supply unit should be mounted vertically in a well-ventilated area, at least 1.5 metres above ground level and within one metre of the filter equipment. It must be kept away from direct sunlight, heat sources, and chemical storage areas to prevent corrosion and overheating. The in-line electrolytic cell should be positioned after all other accessories (like heaters or pool cleaners) but before any divisions in the return to pool line, allowing for easy removal and cleaning. The flow switch must be mounted with its arrow pointing in the direction of water flow.
Before initial operation, the pool water must be prepared by adding the correct quantity of pool salt or EcoMineral Salt and EcoMineral Activator, based on the pool volume. For new pools, it's also recommended to add initial chlorine to achieve a 3 ppm reading and maintain stabiliser levels between 30-50 ppm (for outdoor pools).
Daily operation involves setting the desired sanitiser output and programming the time clock for appropriate running times. During summer, 6-8 hours of operation per day, split into two periods (e.g., morning and evening), is generally recommended, with longer durations (10-14 hours) needed during extremely hot weather or heavy bathing loads. In winter, 4 hours of operation may suffice. Running the sanitiser for excessively long periods can reduce cell life.
The system is designed to be user-friendly, with clear LED indicators and a digital display for time settings. However, users are advised to regularly test their pool water for chlorine levels, pH, total alkalinity, calcium hardness, and stabiliser to ensure balanced water chemistry and effective sanitisation.
Maintenance of the AquaReviva system primarily focuses on the in-line electrolytic cell and general pool water chemistry.
The power supply unit requires minimal maintenance, mainly involving the replacement of blown fuses. However, it's important to periodically spray the wall or post where the unit is installed with insect repellent to prevent insect penetration, which can cause damage not covered by warranty. The back of the unit is designed as a heat sink and will naturally become hot during operation.
The in-line electrolytic cell, despite its "Reverse Polarity" feature, will still accumulate calcium scale over time, especially in areas with hard water. Regular inspection of the cell is recommended, at least weekly, to check for white powdery scale or blue/green soapy substances on the plates. The frequency of cleaning will depend on factors such as water hardness, temperature, pH level, and the use of calcium hypochlorite.
To clean the cell, the power supply must first be turned off, and the cell disconnected from the lead and flow switch. The cell is then removed from the pool return line. A blanking cap (supplied with the unit) is installed on one end, and the cell is placed vertically in an acid-proof container. A cleaning solution, typically 50mL of hydrochloric acid mixed with 500mL of water, is carefully poured into the open end of the cell. Alternatively, an approved commercial cell cleaning solution can be used. The solution will foam as the scale dissolves. It's crucial not to leave the acid solution in the cell for more than 12 hours. After cleaning, the cell should be thoroughly rinsed with clean tap water and reinstalled. Users are warned to always add acid to water, not water to acid, and to wear eye protection and rubber gloves, performing the cleaning in a well-ventilated area.
Monitoring and maintaining balanced pool water chemistry is an ongoing maintenance task. This includes:
The manual provides a detailed "POOL WATER CHEMISTRY INSTRUCTIONS" chart to guide users on how to increase or decrease these parameters and the recommended frequency of testing.
For cell replacement, it is crucial to use genuine Davey AquaReviva Replacement Cells to ensure compatibility, optimal performance, and to maintain warranty validity. Using non-genuine parts can cause serious damage to the unit's electronics.
Overall, the Davey AquaReviva Mineral and Salt Water Sanitiser is designed for efficient and relatively low-maintenance pool sanitation, provided the user adheres to the installation, operation, and water chemistry guidelines outlined in the manual.
General| Category | Water Filtration Systems |
|---|---|
| Application | Residential |
| Filtration Method | Reverse Osmosis |
| Membrane Type | Thin Film Composite |
| Filter Life | 6-12 months (pre-filters), 2-3 years (membrane) |
| Included Components | faucet, tubing, filters |
| Model | AquaReviva DAR20C |
