6 Stage Non-Pumped Reverse Osmosis System 100GPD With Storage Tank

Brand: Direct Water Filters
Product Code: RO-100GPD
Availability: In Stock
Ex Tax: £105.83

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6 Stage Non-Pumped Reverse Osmosis System 100GPD with Storage Tank

Highest quality RO Systems


Reverse osmosis is a method of purifying water by pushing it through a semi-permeable membrane, the membrane allows pure water molecules through it, whilst impurities are flushed away. 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:

Improves the taste, odour and appearance of your water

No more lime scale in your kettle or coffee machine

Improves the taste and texture of vegetables, soup and sauces

Unlimited supply of pure water

At the heart of any reverse osmosis system is the membrane, water is forced under pressure through the membrane to a storage tank and the waste by product goes to drain. In addition to the membrane reverse osmosis unit also incorporates pre-filters and post filters. Because filtered RO water is produced very slowly it is necessary to store the treated water in a small pressurised tank which is linked to separate drinking water faucet (Tap) to supply filtered RO water as and when it is required.

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 before purchasing the unit. Small pumps, specially designed with reverse osmosis systems in mind, are available if your water pressure requires boosting.

This full-size system has superior pre-filtration due to its large 10 inch filters and includes a membrane flush system which reduces membrane fouling thereby extending life.

This RO system will remove up to 99% of tap water contaminants.

Comes with:

All you need to install including, Faucet tap, hose, fittings, wrench, 3 GAL tank

Reverse Osmosis Process

Stage 1              5-micron polypropylene sediment pre-filter to extract suspended materials such as sediment, rust, insects, and other particles down to 5 micron. (Replace every 6 months)

Stage 2             Activated Carbon Block. The carbon block prepares water to enter the reverse osmosis membrane. (Replace every 6 months)

Stage 3            1-micron polypropylene sediment pre-filter to extract suspended materials such as sediment, rust, insects, and other particles down to 1 micron. (Replace every 6 months)

• Stage 4           with a rejection rate (up to 98%) TFC (Thin-Film composite) The highest quality membrane will reject a wide range of total dissolved solids (TDS). (Replace approx. every 18-24 months subject to use)

Stage 5             Inline coconut GAC filter to remove dissolved gases, bad taste and odour from product water. This is the final polishing stage before consumption.

• Stage 6            Re-mineralising filter cartridge to enrich the RO water with essential minerals for good health

Typical removal rates (%)

Sodium (99%), Calcium (99%), Magnesium (99%), Potassium (98%), Iron (99%), Manganese (99%), Aluminium (99%), Ammonium (97%), Copper (99%), Nickel (99%), Zinc (99%), Cadmium (99%), Silver (98%), Mercury (98%), Barium (99%), Chromium (99%), Lead (99%), Chloride (99%), Bicarbonate (98%), Nitrate (97%), Fluoride (98%), Silicate (98%), Phosphate (99%), Chromate (99%), Cyanide (95%), Sulphate (99%), Bromide (98%), Arsenic (99%), Selenium (99%), Bacteria (99%), Protozoa (99%), Amoebic Cysts (99%), Giardia (99%), Asbestos (99%), Oestrogen (99%), Sediment / Turbidity (99%)

Important information to consider prior to ordering.

Our Reverse Osmosis Systems are shipped fully assembled complete with a comprehensive instruction manual for easy DIY installation with no plumbing experience required.

The effectiveness and productivity of RO systems increase with greater water pressure and temperature. The actual flow rate (in GPD) of any reverse osmosis system depends on your source water pressure and temperature.

While manufacturers state that 60 psi is required at the membrane for full production, we know that not everyone's cold water is at 60 psi and 30 °C therefore, we remind you that you might get less than the stated GPD from your membrane, perhaps 50% or even less if your pressure and temperature are very low!

If flow rate is critical for you, you need to consider all these factors before choosing membrane size.

Recommended specification

Temperature: membranes are designed to operate between 13 °C - 30 °C

Water pressure: Min 40 psi, Optimum 60 psi, Max 150 psi

Chlorine content of no more than 0.1 ppm

TDS up to 1000 ppm

PH 2 - 11

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