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What is 4 Stage Reverse Osmosis?

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What is 4 Stage Reverse Osmosis?
4 stage reverse osmosis purifier banner4 stage reverse osmosis purifier banner
Water types
The Water People
The Water People
December 2, 2020
minute read

4 Stage Filtration Guarantees Protection For Your Safety

If you're serious about filtering harmful things out of your drinking water, you're going to want to know about the 4 stage reverse osmosis purification method. It's one of the most comprehensive ways to filter water in the home, and many people swear by it.

But what, exactly, is 4 stage revere osmosis purification? How does it work, and is it worth your time? Read on to find out more about the process, and the benefits that this system of purification can confer.

At The Water People, we stock a range of different reverse osmosis products. Read on to find out more about the quality reverse osmosis water purification items we have for sale.

What are the 4 stages of reverse osmosis?

Reverse osmosis is a series of different processes. Together, these steps filter out even incredibly small particles from your drinking water, from sediment all the way down to microscopic bacteria.

Stage 1 – Sediment pre-filter for mechanical filtration

A superfine polypropylene cartridge protects and extends the life of the membrane by removing sediment particles that are as fine as 5 microns (1 micron = 1/1000 of a mm) such as grit, dust, rust, mud and algae.

Stage 2 – Granular activated carbon pre-filter for membrane protection

A special high-grade class 1 filtration media carbon cartridge is added as a pre-filter to protect the TFC (thin filter composite) membrane from chlorine degradation. Service life of this pre-filter is 2500 US gallons/9,463 litres.

Stage 3 – Ultrafine RO membrane

With pore size less than 0.0005 micron the membrane effectively screens out micro-particles. It repels heavy metal complexes including aluminium, lead, mercury; micro organisms; colloidal matter and most cysts and virtually eliminates mineral ions including fluorides and sodium. This membrane has remarkable affinity for oxygen producing sparkling oxygenated water.

Stage 4 – Carbon polishing post filter

This provides the final polish to your drinking water. It ensures removal of unwanted odours and the creation of superb tasting water. This final filter acts as a final check against any organic impurities.

How do you know if a 4 stage reverse osmosis system is any good?

Our reverse osmosis systems are terrific, but you don't have to take our word for it. Before making a purchase, you can check to see what independent scientists have found when investigating reverse osmosis systems.

NSF Independently Certified

NSF Independently certified

The filter housing and fittings have been tested for performance to comply with NSF Standard 42 for taste, chlorine and odour reduction, and particulate reduction. The National Scientific Foundation is a trusted third-party not-for-profit testing organisation for product manufacturers that deliver, and treat, drinking water. A NSF mark tells customers as well as the regulatory community that your products are certified safer.

Do you sell reverse osmosis systems?

We certainly do! As experts in all things water filtration, we stock a range of different reverse osmosis devices.

countertop 4 stage reverse osmosis purifier WP6000

Aquakleen Countertop Reverse Osmosis

The Aquakleen Countertop Reverse Osmosis water purifier is a superior 4 stage water purifier which provides the ultimate in drinking water quality. It delivers clean, clear drinking water as and when you want it. It is top quality USA made and comes in its own stylish case. Get more Information here.

4 stage reverse osmosis purifier WP6004

Sierra Reverse Osmosis System

The Sierra 4 Stage Reverse Osmosis water purifier delivers litres of clean, clear drinking water from the convenience of the dedicated pure water faucet on the sink top. You have a choice of faucets to complement your existing kitchen tap. Reverse osmosis water is just so refreshing, great tasting and chemical free. Remember how good tank water from our childhood used to taste? Get more information here.

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