• 0
Call us at 1300 255 345

Free Shipping

Free shipping Australia wide!

Shop Online or Phone us

Installation and filter change service

35 Years of experience

High quality water filters

100% Secure Checkout

Paypal / Stripe / Mastercard / Visa

How Reverse Osmosis Works

reverse osmosis

Osmosis is a process which occurs when two solutions of different concentrations are separated by a semi-permeable membrane. Reverse osmosis water purification works by forcing the water under pressure against an ultrafine semi-permeable membrane designed to allow single water molecules to permeate through, while at the same time rejecting most contaminants known as waste water. The membrane acts as a mechanical filter, straining out particulate matter, micro-organisms, asbestos, even single molecules of heavier organic compounds.

A typical RO purifier consists of four filters in series plus a storage tank. The first is a sediment filter, the second a carbon block, the third a membrane and the fourth an activated carbon block to remove any remaining chlorine by-products.  Such a system removes a wide spectrum of impurities from water; the only energy required is that of mains-water pressure.

Reverse osmosis effectively removes turbidity, sediment, colloidal matter, bacteria, chemicals, fluoride, totally dissolved solids, toxic metals, radioactive elements, pesticides, and herbicides. This can have significant health benefits.

A typical system produces water at a slow rate – almost drop by drop – so most under sink systems have a pressurised storage tank and a separate dedicated faucet or all in one three way mixer installed on the sink. Water drawn from the faucet or mixer comes from the storage tank.

A portable counter top reverse osmosis system works the same way except without a pressurised tank. Instead these systems attach directly to an existing faucet and used to fill a bottle or glass directly from the system. These systems are suited for use when renting, unable to plumb a system in, or for travel.

The average system produces about 300 litres per day if left to run 24 /7*, more than enough for an average family.
(* Depending on inlet water pressure and membrane capacity.)

The average domestic RO will with modern technology achieve a waste water ratio of 1 – 1.
Unlike filters, RO membranes don’t accumulate pollutants but the membranes themselves gradually degrade with use. While the sediment and carbon filters will probably need replacement every 6 – 12 months, membranes should be changed every 4 – 5 years or as specified by the manufacturers or dependent on water conditions.

One Reply to “How Reverse Osmosis Works”

  1. You’re so cool! I do not believe I’ve truly read through
    something like this before. So good to discover
    another person with some genuine thoughts on this subject.
    Really.. many thanks for starting this up. This web site
    is something that is required on the internet, someone with
    some originality!

Leave a Reply

Your email address will not be published. Required fields are marked *