Water Filter Systems

Reverse osmosis is a method of purifying water by pushing it through a semi-permeable membrane. By using reverse osmosis, it is possible to remove all suspended solids, up to 98% of dissolved solids and virtually all bacteria, pesticides and viruses. Reverse osmosis has many benefits. These include -

• Improved taste, odour and appearance of water
• An unlimited supply of pure water for less than just 3 pence a litre
• Removal of lime scale
• 'Intenser' tasting fruit juices, cordials and hot drinks; better cooking results

 At the heart of any reverse osmosis unit is the membrane. In addition, Freshwater's MRO30K reverse osmosis unit also incorporates a prefilter and two activated carbon filters. Once water has been purified, it is stored in a tank, which has a tap, allowing you to access perfectly pure water whenever it is needed.

Reverse osmosis systems are compact enough to be installed under most kitchen sinks. However, the units do require a minimum water pressure of 2.7 bar/40psi - so it is essential you have your home's water pressure assessed by a qualified plumber before purchasing the unit. Small pumps, especially designed with reverse osmosis systems in mind, are available if your water pressure requires boosting.

Reverse Osmosis Technical Information

RO Specification Sheet (10/06/09) E & OE

What is Reverse Osmosis?

Reverse Osmosis is the method of purifying liquid by pushing it through a semi-permeable membrane.  In the case of tap water, the membrane allows pure water molecules through it, whilst impurities are flushed away.

The benefits:

• Improves the taste, odour and appearance of your water

• Unlimited supply of pure, fresh water for less than 2p a day.

• Use 30% less coffee and still enjoy the taste you like.

• Concentrated fruit drinks are fresher and more tasty.

• No more lime scale in your kettle or coffee machine.

• Improves the taste and texture of vegetables, soup and sauces.

What will Reverse Osmosis Remove?

Using R.O. membrane technology, it is possible to remove suspended solids, up to 98% of all dissolved solids, as well as virtually all bacteria, pesticides, insecticides and viruses.

The Membrane

The term reverse osmosis is the opposite of osmosis. Osmosis is the means by which water and nutrients are supplied to living cells. Cell walls are natural semipermeable membranes. They are selective allowing only certain materials to pass through the membrane while rejecting others. The natural flow is from the dilute solution to the concentrated solution. Reverse Osmosis is the process of utilising pressure to reverse the natural flow through a semi-permeable membrane.

Description

The membrane module is the heart of an RO system. There is an activated carbon pre-filter and a post filter to “polish” the water. As the filtered RO water is produced very slowly it is necessary to store the treated water in a small pressurised tank. This is linked to separate drinking faucet (Tap)

System Diagram:

RO Specification Sheet (10/06/09) E & OE supply the filtered RO water as and when it is required.

In an RO system water pressure is used to separate water into 2 streams. One part is forced through the membrane and emerges through the unit to drain. The membrane in an RO is exceedingly fine. The pore sizes are about 5 angstroms (five hundred millionths of a centimetre). As productivity of the membrane is proportional to size; the membrane is packaged into a spiral wound element. Our thin film composite (TFC)

Membranes are the most effective.

Installation An in-home RO system can be installed under a kitchen sink. In some hard water areas it is advisable to use an RO unit in conjunction with a water softener. Calcium is known to clog membranes. Softened water can prolong the life of the system. The minimum water pressure required is 2.7 bar (40psi). Small RO pumps are available to provide the correct incoming pressure if it is insufficient. You can easily fit the RO unit yourself.

Specifications

Position Under sink

Daily system capacity 60 galls (270 L)/day at 4 bar (60psi)

Storage capacity 3.2 galls (14.5 L)

Operation Automatic

Watersource Potable water only

Feedwater pressure 35 psi -100 psi

Standard module 2.45 bar - 7 bar

Feedwater temperature 40C - 250C/ 400F - 80oF

Feedwater ph range 4.0 min - 9.0 max

Max total dissolved solids (TDS) 2000 PPM Recovery 20 - 25 %

Filter cartridge Replacement At least every 6 months

Dimensions of -main unit Dimensions of tank

Height 15” (380 mm) Height15” (380mm)

Width 14” (355 mm) Diameter11” (279mm)

Depth 7”(177mm)

Efficiency

Specific elements that are controlled:

Metals Pesticides

Fluoride 95% Lindane 99%

Copper 99% Endrin 99%

Lead 99% Deldrin 99%

Cadmium 99% Aldrin 99%

Sodium 99%

Zinc 99%

Aluminium 99% Bacteria 99%

Chlorine 99%

Nitrate 99%

• Food supplements should not be used as a substitute for a varied and balanced diet and healthy lifestyle.
• Always seek advice from a trained practitioner before starting a food supplement programme.
• Keep out of reach of children.
• Do not exceed recommended dose unless under the guidance of a trained practitioner.
• Follow stated supplement regime. Food supplements can be spread throughout the day if taking more than one dose or as recommended by your practitioner.
• Do not take food supplements if pregnant or breastfeeding unless specified.
• Store food supplements in a cool dry place (unless otherwise stated).
• Do not use if seal is broken before taking first dose.