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Reverse Osmosis - Helpful Information

 atlas filtri RO water purifier systems

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Reverse osmosis water filtration systems offer a remarkable solution by effectively removing 90% of total dissolved solids (TDS) from water, ensuring your home has access to the purest water possible. These filters are highly proficient at eliminating a wide spectrum of contaminants from your drinking water, including chlorine, fluoride, cryptosporidium, and hexavalent chromium.

At NZ Pump and Water Filters, we specialize in Reverse Osmosis technology, and we are proudly based in New Zealand. 

When it comes to improving the taste and safety of your water supply, a reverse osmosis filter stands out as the most effective solution for eliminating impurities that can negatively impact both flavor and water quality. Installation is a straightforward process that typically requires the assistance of a plumber. If you're considering an under-sink or under-bench water filter system, don't hesitate to contact us at NZ Pump and Water Filters. We can discuss the space requirements and tailor a system to your needs.

Our certified Reverse Osmosis systems in New Zealand are meticulously designed to not only meet but surpass the country's stringent safe drinking standards. Our premium RO systems come in a variety of options, ranging from compact commercial systems to residential RO systems that can even reintroduce essential minerals into the filtered tap water, ensuring the highest quality water for your consumption.

Where our Quality Brands come from

Atlas Filtri -  Italian water technology company since 1975

Hydronix -  American water technology company 1980

Pentair -  American water filter companies since 1966

What Is Reverse Osmosis?

Reverse Osmosis (RO) is a technologically advanced process where pressure is applied to higher osmotic levels to produce pure, contaminant-free water. Pressure-driven reversal of osmotic flow. For this reason, it is named Reverse Osmosis (RO), which is all very technical, right? Most importantly, this allows you to enjoy water with unparalleled purity and taste.

Benefits of a Reverse Osmosis Water Filter

Our reverse osmosis water filtration systems deliver the highest level of purity for your home, effectively removing up to 90% of total dissolved solids (TDS). With its advanced filtration capabilities, it can successfully eliminate chlorine, fluoride, cryptosporidium, and hexavalent chromium, ensuring that you have access to fresh and clean water.

Installing an under-sink RO system can also contribute positively to the environment. Most of our systems come equipped with a dedicated tap for purified water. This means you can enjoy the benefits of purified tap water right in your kitchen, reducing the need for plastic bottled water and, in turn, minimizing plastic waste. Whether you're brewing a flavorful coffee or steeping a refreshing cup of tea, our purified water will enhance the taste and quality of your beverages.

What does a Reverse Osmosis water purifier do?

Reverse osmosis is a water purification process that uses a semi-permeable membrane to filter out unwanted particles and contaminants, resulting in clean drinking water. In this process, applied pressure is used to overcome the natural osmotic pressure, pushing water from high concentrations of contaminants to low concentrations, forcing contaminated water through the filter, and leaving only pure water behind.

The stages of filtration include a sediment filter, pre-carbon block, reverse osmosis membrane, and post-carbon filter. The sediment filter removes the largest particles, the pre-carbon block prevents larger particles from passing through and prevents chemical compounds from passing to the next filter, the reverse osmosis membrane removes molecules heavier than water, and the post-carbon filter polishes the water.

Rigorous testing has shown reverse osmosis water filters to effectively remove arsenic, lead, fluoride, and more. And while there are other purification options out there, many experts consider reverse osmosis to be one of the most thorough, effectively removing up to 99% of these contaminants. So if you're on the hunt for some peace of mind when it comes to quenching your thirst, consider investing in a reverse osmosis water filter.

Does an RO system waste water?

To ensure a Reverse Osmosis system delivers purified drinking water, it must eliminate impurities as an integral part of its operation. The volume of wastewater generated varies depending on the quality of the RO system, and we are proud to offer a range of quality-certified systems.

One perspective on the wastewater is to view it as part of the purification process rather than as water wastage. For instance, when our hands are soiled, we wash them to remove impurities, a standard practice that isn't considered water wastage. Similarly, if the discarded RO water can be collected, it becomes a valuable resource for tasks such as mopping floors, watering the garden, and more. This approach transforms what might seem like waste into a useful resource.

Is it Worth Buying a Reverse Osmosis System?

RO is the only purification system that can successfully remove Total Dissolved Solids (TDS), chemicals, and other harmful impurities such as lead, mercury, and arsenic, which can cause damage to the human body.

When it comes to clean and safe drinking water, the reverse osmosis water filter (RO) system is definitely worth considering. RO technology removes a wide range of contaminants, including lead, arsenic, pesticides, heavy metals, and even pharmaceuticals. It also reduces chlorine taste and odor, making for a better overall taste. While RO filters do require regular maintenance and replacements, the benefits they provide in terms of water quality make it worth it. Overall, investing in an RO system can give you peace of mind about the quality of your drinking water.

RO or Standard Carbon filter?

When it comes to filtration options for your home's drinking water, the clear winner is reverse osmosis. While a carbon filter can remove some contaminants, reverse osmosis does a much more thorough job of removing substances like lead, fluoride, and arsenic. In areas with high levels of total dissolved solids (TDS) like minerals and salts, reverse osmosis also shines in comparison to a carbon filter.

Which Filter Removes The Most Contaminants?

When it comes to filtering your water, reverse osmosis water filter systems are top-of-the-line in terms of removing contaminants. In fact, they can remove up to 99% of particles, including lead, arsenic, chlorine, and more. Plus, they also have the bonus effect of reducing excess sodium in the water. For those looking for the ultimate peace of mind about their drinking water quality, reverse osmosis is the way to go. And with NZ Pump & Water Filters' various multi-stage options available, you can tailor your system to meet your specific needs." 

Does the Reverse Osmosis system require power?

Only if you have low pressure in your home and you require a booster pump to increase the systems pressure. Otherwise all of our other RO water Purifiers do not require electrical power.

Is RO water acidic or alkaline?

RO purified water PH levels are normally around 6.0 – 6.5 pH (acidic)

A quality certified RO system that uses remineralization generally increases the PH to be alkaline with a pH of 7.5 to 8.0.

Will I need a Plumber to Change the Filters?

The Hydronix 4-stage Reverse Osmosis System offered by NZ Pump and Water Filters simplifies the process of replacing water filter cartridges through its user-friendly twist-lock mechanism. You can easily unlock the filter by giving it a simple turn, and the same applies when installing the new filters.

In contrast, the Oasis and EcoSoft Reverse Osmosis systems, also available from NZ Pumps and Water Filters, involve a slightly more involved process. To replace the filter, you'll need to disconnect the tubing, remove the existing filter, and detach the push-fit connections from both ends before attaching them to the new replacement filter. Then, securely place the filter onto the clips and reconnect the tubing. While this may sound complex, it is actually quite manageable and straightforward.

Do I need to flush out my RO system if it is unused for a while?

Yes, if the RO system has been unused up to 7 days it is best that the system is completely flushed out. Completely empty the storage tank.

Do I need to sanitize my RO system?

Yes it is very important to clean the system with a sanitizer with an unscented bleach at least every 12 months

Here are simple cleaning steps;

  1. Shut off the cold water supply line leading to the RO system.

  2. If your system is connected to your refrigerator or icemaker, turn off the water line that connects to the icemaker.

  3. Open the faucet of the RO water system and allow all water to drain from the system and storage tank.

  4. After emptying the system, make sure to close the RO faucet handle.

  5. Unscrew the pre-filter housing, typically the filter closest to the feed water line. If you plan to replace the pre-filter, remove and discard it. Keep the filter housing off.

  6. Remove all remaining filters and the reverse osmosis element (membrane). If your RO filter system includes an inline post-filter, retain the old filter unless you are installing a new one. Discard any old filters when replacing them. Refer to the filter manufacturer's instructions for installation and removal guidance.

  7. Reattach all empty housings to the system, excluding the pre-filter housing. There should be no filters in any housings at this stage.

  8. Add two or three tablespoons of unscented bleach (5.5%) to the pre-filter housing.

  9. Reattach the pre-filter housing to the system, now containing the sanitizer solution.

  10. Turn on the cold water supply line to allow the system to fill with the sanitizing solution.

  11. Check for any potential leaks.

  12. Allow the system to fill with water, which may vary in time depending on water pressure. However, it should be full within 5-10 minutes without filters or a membrane installed.

  13. Turn on the RO faucet until water begins to flow out, and then turn off the faucet.

  14.  let the system sit for at least 30 minutes.

  15. After the specified time, flush the system by turning on the RO faucet and letting water run through the system for 5 minutes or until the bleach odor is gone.

  16. Turn off the cold water supply line. Turn on the RO faucet to drain the system completely. Repeat this step twice.

  17. After draining the system completely the second time, either replace or reinstall all filters and the membrane.

  18. Turn on the cold water supply line and inspect for leaks.

  19. Allow the system several hours for the RO membrane to refill the storage tank.