Water Purifiers >> Reverse Osmosis Systems

AQUA PRO 450 Reverse Osmosis Unit 450 US Gallon Per Day Rated RO System

The AQUA PRO 450 Incorporating 3 x 150 US GPD genuine USA produced Thin Film Composite Reverse Osmosis Membranes, This system will produce a large amount of pure water whatever your needs.

The AQUA PRO 450 Reverse Osmosis system is supplied with a Pre Filter Housing Key, a Reverse Osmosis Filter Housing Key, a Quick Connect Water Supply Saddle Valve, Waste Clamp and 3 x 2 meter lengths of coloured poly tube for installation.

This high quality RO System incorporates a Flow Restrictor Bypass Valve which facilitates manual flushing of the R O membranes or as an optional extra an Auto Flush bypass kit can be supplied with transformer and digital timer like in the image below also now available is the Polyprop mounting boards in black as shown below.

The AQUA PRO 450  6 stages of filtration are:

• 5 Micron Sediment Filter Made From 100% Pure Polypropylene Fibres, Removes Dirt, Sand and Rust.
• Granular Activated Carbon Filter Composed of High - Performance Activated Carbon. Removes Free Chlorine, Odour, Organic Contaminants, Pesticides and Chemicals.
• Carbon Block Filter, Composed of High - Performance Carbon, Removes Trihalomethanes, Pesticides, Volatile Organic Chemicals and 99.95% of Giardia and Cryptosporidium Cysts.
• 3 x 150 US Gallon per day High Rejection Thin Film Composite Reverse Osmosis Membranes.

We strongly recommend that if you're mains water is via a water meter you will require a booster pump as the water meter reduces water pressure, please note this will greatly reduce wastage.

By using a 'Reverse-Osmosis' (R/O) plant, your mains water can be completely stripped of all minerals and contaminants, essentially producing pure H2O, or distilled water.

This R O water will usually have a TDS of perhaps 11ppm. Most of that 11ppm figure would actually be Carbon Dioxide, which makes the water acidic, but will quickly gas off, leaving you with a pH of around 7.

R/O plant water on its own is very dangerous for aquatic life, as it has absolutely no pH stability, and no mineral content. But, when mixed back in with dechlorinated untreated mains water, you can make the perfect water, which can give you superb results!

How I can achieve my 'ideal' water

Lets say your mains water currently has a TDS level of 335ppm. Contained within that reading is the KH, which runs at 11dH (190ppm). As far as growth and koi development are concerned, not really that good for your koi.

But, with an R O system that produces water with a near zero TDS, you can mix this water
with dechlorinated untreated mains water at a ratio of lets say 75% R O water, and 25% mains water, which results in a TDS of just 84ppm, and a KH of 2.75dH, which is more like it.

This may sound complicated, but provided that you know the KH value and TDS of your mains water before you mix it with R/O water, you can use the TDS meter to determine the KH value of your mixed water. In this case, if the mixed water TDS level rises above 84ppm, just reduce the flow of mains water a little, and if it's too low, then the flow is increased.

Running the above KH reading is perfectly safe if you carefully watch and make regular notes of your pond KH level. Obviously, if the KH depletes below the desired level, you will have to either change more water, or add a 'harder' mix of water.

Please note that Reverse Osmosis water contains no minerals, and hence is very
unstable. It is dangerous to use R/O water without mixing it with mains water.

80 psi Booster Pump For 300 US GPD and 450 US GPD Reverse Osmosis Systems

Get The Most Out of Your Reverse Osmosis System. This Heavy Duty Pump is a Must if Your Reverse Osmosis System is Under Performing Due to Low Water Pressure.

Very Quiet in Operation, This Pump Delivers 80 psi of Water Pressure to Your Reverse Osmosis System. The Pump is Supplied Complete With 12 Volt Transformer and Rubber Mounted Baseplate.

The 80 psi Booster Pump is Rated as Follows:

• Suitable for up to 3 X 150 US GPD Membranes in series.
• 24 Volts DC
• Flow rate 22.5 US Gallons Per Hour
• Watts 35
• Pressure 80psi

This pump is designed to be installed before the Ro Unit to boost the inlet pressure. There needs to be at least 40 psi and up to 80 psi of inlet pressure for the Reverse Osmosis Water Purification Unit to function properly.

People on wells and other situations of low pressure can benefit greatly from this pump. It boosts the pressure up to 80 psi allowing RO unit to run with higher flow and efficiency while having better TDS removal.

The 80 psi Booster Pump, specifically designed for this RO unit, is a workhorse but runs quietly. Comes cord and quick connect fittings.

AMFOR® reverse osmosis membrane elements are the most reliable, advanced membrane technology available, the automated fabrication allows these elements to keep consistent performance.

AMFOR RO Membranes will out perform any other membrane found in the UK.

Please do not confuse these genuine Amfor USA membranes with any other on the market here in the UK. These are the best membranes money can buy and are used on our own systems.

This AMFOR® reverse osmosis membrane elements will fit All Standard Reverse Osmosis Housings supplied by all the major manufacturers

100 US GPD (378 Litres) Rated Reverse Osmosis Membrane

100 US GPD (378 Litres) Per Day Thin Film Composite (T.F.C.) Reverse Osmosis Membrane.

This Membrane Will Fit All Standard Reverse Osmosis Housings Supplied by Other Water Filter Manufacturers.

AMFOR 150 US GPD Rated Reverse Osmosis Membrane

150 US Gallon Per Day Thin Film Composite (T.F.C.) Reverse Osmosis Membrane.

This High Capacity American Manufacturerd R O Membrane is Very Popular With Koi Enthusiasts.

This Membrane Will Fit All Standard Reverse Osmosis Systems Incuding Other Water Filter Manufacturers.

10 Inch Sediment Filter

This Filter Will Fit All Standard 10 Inch Filter Housings Supplied by Most Other Water Filter Manufacturers.

10 inch 5 micron high capacity polypropylene sedimentary filter for the removal of sediments, dirt, sand and rust. This is normally used in the first stage of a multi stage water Reverse Osmosis filter system.

10 Inch Granular Activated Carbon (GAC) Filter.

This Filter Will Fit All Standard 10 Inch Filter Housings Supplied by Other Water Filter Manufacturers

Composed of High - Performance Activated Carbon. Removes Free Chlorine, Odour, Organic Contaminants, Pesticides and Chemicals.

10 Inch 5 Micron Carbon Block Filter

This Filter Will Fit All Standard 10 Inch Filter Housings Supplied by Other Water Filter Manufacturers

This Filter is Effective in Removing

• Chlorine
• Pesticides
• Volatile Organic Chemicals
• 99.95% of Giardia and Cryptosporidium Cysts.

Prefer to bulk buy:

18 Prefilters For the 300 and 450 US GPD Reverse Osmosis Systems

3 Year supply, changed every 6 months

These Filters Will Fit All Standard 10 Inch Filter Housings Supplied by Other Water Filter Manufacturers.

This box contains the standard 10 inch filters found in most Reverse Osmosis systems.

18 Filters in Total.

• 6 x 5 - Micron Sediment Filters Made of 100% Pure Polypropylene Fibres. Removes Dirt Sand and Rust.
• 6 x Granular Activated Carbon (GAC) Filters Composed of High - Performance Activated Carbon. Removes Free Chlorine, Odour, Organic Contaminants, Pesticides and Chemicals.
• 6 x Carbon Block Filters Composed of High Performance Carbon. Removes Trihalomethanes, Pesticides, Volatile Organic Chemicals and 99.95% of Giardia and Cryptosporidium Cysts.

1/4 inch (6mm Approx) Polytube

This Polytube is The Industry Standard Size and is Suitable for The Water Supply on Most Reverse Osmosis Filtration Systems

For customers who demand top quality tubing at a great price.

Sold by the meter x  1/4 inch

Colors include White, Red, black & blue.

Inline valve with pushfit connections for use with standard 1/4 inch connection tubing.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

24 Volt DC Solenoid Valve

• 24 Volt DC Solenoid Valve
• 4.8 Watt
• Max Inlet Pressure 0.8 MPa (120 psi)
• Open when energised.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

3/4 Inch bsp screw on tap connector with pushfit connection for use with standard 1/4 inch connection tubing.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

3/4 inch x Male Palstic Y Piece Hose Connector

This Fitting Allows Two Appliances to Share The Same Single 3/4 Inch BSP Water Supply Connection, ie Reverse Osmosis Unit and Standand Dechlorinator

It is also Suitable For a Water Filter System When Used in Conjunction With our 3/4 Inch BSP Tap Connector.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

Elbow 1/4 Inch Pushfit Connector  for use with standard 1/4 inch connection tubing.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

High Pressure Switch

This high pressure switch is fitted on the output side of a booster pump and will turn off the power supply to the pump when the water back pressure increases as a result a blockage in the Reverse Osmosis system.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

Inline 1/4 Inch Pushfit Connector  for use with standard 1/4 inch connection tubing.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

Low Pressure Switch

This Low Pressure Switch is located on the feed water side of your booster pump and will turn the pump off preventing it running dry on loss of mains water pressure.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

This waste water clamp will fit around a standard 40mm diameter waste pipe and accepts the Industry Standard 1/4 inch tubing used on most RO Systems.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

The greater the water pressure, the better the quantity and quality of the Reverse Osmosis water produced. Water pressure of 80 psi is ideal; we supply systems with and without booster pumps for both adequate and low-pressure installations.

Water Pressure Gauge Supplied With a T Piece Push Fit Connector Enabling it to Fit Inline With a Standard 1/4 Inch Water Feed Pipe For an Accurate Water Pressure Reading.

We strongly recommend that if you're mains water is via a water meter you will require a booster pump as the water meter reduces water pressure, please note this will greatly reduce wastage.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

Tee Piece 1/4 inch pushfit Connector for use with standard 1/4 inch tubing.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

Water Filter Housing 1/4 Inch Elbow Pushfit Connector

Water Filter Housing Elbow Pushfit Connector for use with standard 1/4 inch connection tubing.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

Water Filter Housing 1/4 Inch Pushfit Connector

 Water Filter Housing Pushfit Connector for use with standard 1/4 inch connection tubing.

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

These connectors are designed for use in all cold water Reverse Osmosis applications and will last many, many years!

What is a Reverse Osmosis System?

The Absolute Koi Reverse Osmosis System for koi ponds will remove 95-99% of all the contaminants from raw tap water. With a Reverse Osmosis System you can simply create your own water make up for your koi pond!

How does Reverse Osmosis work

Reverse Osmosis Systems employ a semi permeable membrane that removes not only particles but also an extremely high percentage of dissolved contaminants-molecule by molecule- from raw tap water.

What is the Membrane and how does it work?

The membrane consists of several thin layers or sheets of film that are bonded together and rolled in a spiral configuration around a plastic tube (This is also known as a thin film composite or TFC membrane.) The material of the membrane is semi permeable: which means it allows water molecules to pass through while acting as a barrier to dissolved solids (i.e.: mineral and chemical contaminants). When the feed water stream passes across the surface of the membrane, the molecules penetrate the membrane surface, working their way around the spiral and collecting in the centre tube. The remaining contaminants are concentrated and washed from the surface of the membrane down the drain.

What is Osmosis?

Assume a membrane is semi permeable, allowing water to pass through while being closed to dissolved salts. Place a membrane between two compartments in a container then place a salt solution in one half of the container and pure water in the other half. Now a fundamental scientific principle comes into play. That is, two different concentrations of liquids within the same system will try to reach equilibrium (i.e. the same concentration of contaminants) on both sides of the membrane. Of course the only way for this to happen is for pure water to pass through the membrane to the salt water side in an attempt to reach equilibrium this is called Osmosis.

What is Reverse Osmosis?

Reverse Osmosis is the reversal of the natural flow of osmosis. In a water purification system, the goal is not to dilute the salt solution, but to separate the pure water from the salt and other contaminants. When the natural osmotic flow is reversed, water from the salt solution is forced through the membrane in the opposite direction by application of pressure-thus the term Reverse Osmosis. Through this process, we are able to produce pure water by screening out the salts and other contaminants.

What is the actual process of a Reverse Osmosis System?

The raw tap water first flows through a 5 micron polypropylene sediment filter, to remove dirt, rust and other sediment. The water then flows into a granular activated carbon cartridge filter, which takes out 98% of the chlorine and organic chemicals. The next stage of the process is the carbon block filter, to filter multi-chemical compounds and suspension out of the water. The next process is the reverse osmosis membrane (TFC), which separates 95-99% of the dissolved contaminants from the water molecules. The contaminants are then washed down the drain. The final stage of the RO series process is a small carbon filter; this removes the remaining traces of chemicals

What factors affect the quantity and the quality of the water produced?

There are four major variables to consider:

1. PRESSURE. The greater the water pressure, the better the quantity and quality of the water produced. Water pressure of 80 psi is ideal; we supply systems with and without booster pumps for both adequate and low-pressure installations.

2. TEMPERATURE. 24 degree centigrade is the ideal water temperature for R.O. systems, any reduction in water temperature will cause the production of purified water to fall. The maximum water temperature recommended is 29 degree centigrade.

3. TOTAL DISSOLVED SOLIDS (TDS). The higher the amount of dissolved contaminants in the water, the lower the quantity of water produced. A high level of *TOTAL DISSOLVED SOLIDS can be overcome with additional water pressure.

4. MEMBRANES. These are rated at various flow rates.

What Warranty do I get with my R O System?

The RO System (excluding filters) is guaranteed for 1 year for material and workmanship defects. All defective parts will be replaced free within the first year.

What is the maintenance schedule for the RO System?

The three pre-filter cartridges should be changed every 6 months. The first is a 5 Micron Polypropylene Sediment Filter. The second is a Granular Activated Carbon Filter. The third is an Extruded Carbon Block Filter. Failure to change the Filters every 6 months may allow chlorine to destroy the membrane. Depending upon the water it is treating, the Thin Film Composite membrane has a life expectancy of 2 to 3 years. The Post Carbon Filter should be changed every 12 months.

When should the membrane be changed?

One indication is a gradual reduction in water production caused by a layering of minerals and salts on the membrane surface. Another is a gradual deterioration in the quality of water being produced. This might mean the R.O. membrane is disintegrating and requires replacement.

(Note: Our Total Dissolved Water Quality Tester can test the water and tell you when you should change the R.O. membrane).

What contaminants does Reverse Osmosis Remove?

The Absolute Koi RO System contains a combination of filters which between them remove more than 98% of organic chemicals from the water.

These include THMs(chloroform), DBCP, lindane, TCEs(trichloroethylene), PCEs(tetrachloroethylene), carbon tetrachloride chlorine, In addition to these organic chemicals, below is a partial list of other contaminants removed by the F.C.S. TFC membrane. The percentage of removal shown below is a conservative estimate.

AQUA PRO 3000 Reverse Osmosis Unit 3000 US Gallon Per Day Rated RO System (2500 UK gallons a day)

The AQUA PRO 3000 Incorporating 3 x 1000 US GPD genuine USA produced Thin Film Composite Reverse Osmosis Membranes, This system will produce a large amount of pure water whatever your needs.

This high quality RO System incorporates 2 x 20 inch Pre Filter, 3 x Stainless Steel housings, a Manual Restrictor Valve and optional Auto Flush bypass kit which can be supplied with transformer and digital timer, also now available is the Polyprop mounting boards in black as shown below.

This unit is up and running in our fish house and is producing 1000 gallons a day on a 50/50 ratio, the first of its kind in the UK!

We have a mains water supply with a TDS of 385, this unit gives product water with a TDS of 9 and a waste TDS of around 700 !

The AQUA PRO 3000 5 stages of filtration are:

• 5 Micron Sediment Filter Made From 100% Pure Polypropylene Fibres, Removes Dirt, Sand and Rust.
• Carbon Block Filter, Composed of High - Performance Carbon, Removes Free Chlorine, Odour, Organic Contaminants, Trihalomethanes, Pesticides, Volatile Organic Chemicals and 99.95% of Giardia and Cryptosporidium Cysts.
• 3 x 1000 US Gallon per day High Rejection Thin Film Composite Reverse Osmosis Membranes.

AQUA PRO 3000 Features:

• 2 x 20 inch Pre filter
• Pressure Gauge
• Inline TDS Meter from HM Digital
• Pre Filter Housing Wrench
• Sturdy polyprop mounting board
• Hosebarb connections supplied to allow connection to 1/2 inch Food Grade Pipe
• 20 times a day Auto flush valve used to periodically flush the membranes
• Digital Timer
• Digital Timer Transformer

By using a 'Reverse-Osmosis' (R/O) plant, your mains water can be completely stripped of all minerals and contaminants, essentially producing pure H2O, or distilled water.

This R O water will usually have a TDS of perhaps 11ppm. Most of that 11ppm figure would actually be Carbon Dioxide, which makes the water acidic, but will quickly gas off, leaving you with a pH of around 7.

R/O plant water on its own is very dangerous for aquatic life, as it has absolutely no pH stability, and no mineral content. But, when mixed back in with dechlorinated untreated mains water, you can make the perfect water, which can give you superb results!

How I can achieve my 'ideal' water

Lets say your mains water currently has a TDS level of 335ppm. Contained within that reading is the KH, which runs at 11dH (190ppm). As far as growth and koi development are concerned, not really that good for your koi.

But, with an R O system that produces water with a near zero TDS, you can mix this water
with dechlorinated untreated mains water at a ratio of lets say 75% R O water, and 25% mains water, which results in a TDS of just 84ppm, and a KH of 2.75dH, which is more like it.

This may sound complicated, but provided that you know the KH value and TDS of your mains water before you mix it with R/O water, you can use the TDS meter to determine the KH value of your mixed water. In this case, if the mixed water TDS level rises above 84ppm, just reduce the flow of mains water a little, and if it's too low, then the flow is increased.

Running the above KH reading is perfectly safe if you carefully watch and make regular notes of your pond KH level. Obviously, if the KH depletes below the desired level, you will have to either change more water, or add a 'harder' mix of water.

Auto Flush Digital Timers

These digital timers enable auto flushing to the 24 Volt DC Solenoid Valve, they simply enable you to set 20 auto flushes a day to keep the membranes nice and clean, the 24 Volt DC Solenoid Valve simply Open's when energised

These parts are made to the highest specification, and are suitable for water filters, RO Reverse Osmosis water filters.

Auto Flush Digital Timer Features

• 7 Day Digital Timers
• AM, PM or 24 hour settings
• 140 programmable settings per week
• Digital display with 24 hour or AM/PM settings
• Countdown timer
• Random on/off function
• Battery backup
• Rated 8A/2000W
• Rated input - 240 Volt - 50Hz
• Maximum output - 2000 Watts
• IP rating - IP20
• Working temperature- 0-55 degrees C
• Time setting interval - 1 minute min

Commercial Inline Dual TDS Monitor

Ideal for water treatment as well as other industrial and commercial applications the DM-2 is the big cousin of the DM-1 with added features such as a stronger, water-resistant casing.

Commercial Inline Dual TDS Monitor Features

• Highly efficient and accurate due to its advanced microprocessor technology.
• Displays TDS levels of the Feed Water and Product Water with in & out electrode probes.
• Auto-Off function conserves battery power. The unit shuts off automatically after 20 seconds.
• Dual Range - Measures from 0-999 ppm, with a resolution of 1 ppm. From 1000 to 9990 ppm, the resolution is in 10 ppm increments, indicated by a blinking 'x10' image.
• Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution.
• Meters can be recalibrated with a mini-screwdriver.
• Comes equipped with 1/4 inch Mur-lok® Quick-Connect T-fittings.
• Also available with 3/8" or 1/2" fittings.
• Installs quickly and easily.

Differences from the DM 1:

• Designed for commercial/industrial applications.
• Stronger, water-resistant casing.
• Calibration can be done individually or simultaneously on each line.
• Improved design, including an extra large, easy-to-read LCD display.
• Longer, waterproof, shielded cables.
• Variable mounting bracket.
        

Commercial Inline Dual TDS Monitor Specifications

Range: 0-9990 ppm
Accuracy: ±2%
Conversion Factor: NaCl (avg. 0.5)
Cable Length: 46" (including sensor)
Calibration: Factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line, or simultaneously for both.
Power source: 2 x AA batteries (included)
Battery life: Approx. 12-18 months
Size: 11.6 x 6.8 x1.8 cm (4.6 x 2.6 x .7in.)
Weight: 201.3 g (7.1 oz.)

Inline TDS Meter

Measure the TDS of tap water coming in vs. the RO purified water going out of your water filtration system at any time.

This TDS meter allows you to monitor your Reverse Osmosis system performance giving you peace of mind that everything is working as it should.

Inline TDS Meter Features

• Displays TDS levels of the feed water and product water with in & out electrode probes.
• Highly efficient and accurate due to its advanced microprocessor technology.
  Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.
• Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.)
• Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
• Comes equipped with Mur-lok® Quick-Connect T-fittings.
• Installs quickly and easily.

Inline TDS Meter Specifiactions

Range: 0-9990 ppm
Accuracy: ±2%
Conversion Factor: NaCl (avg. 0.5)
Cable Length: 24.5" (including sensor)
Fittings: 1/4" standard, also available with 3/8" or 1/2"
Power source: 2 x 1.5V button cell batteries (included)
Battery life: approx. 1000 hours of continuous use
Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.)
Weight: 79.4 g (2.8 oz.)

Reverse Osmosis Unit 300 US Gallon Per Day Rated RO System

Incorporating 3 x 100 US GPD genuine USA produced Thin Film Composite Reverse Osmosis Membranes, This system will produce a large amount of pure water whatever your needs.

This Reverse Osmosis system is supplied with a Pre Filter Housing Key, a Reverse Osmosis Filter Housing Key, a Quick Connect Water Supply Saddle Valve, Waste Clamp and 3 x 2 meter lengths of coloured poly tube for installation.

This high quality Reverse Osmosis System incorporates a Flow Restrictor Bypass Valve which facilitates manual flushing of the Reverse Osmosis membranes.

The 6 stages of filtration are:

• 5 Micron Sediment Filter Made From 100% Pure Polypropylene Fibres, Removes Dirt, Sand and Rust.
• Granular Activated Carbon Filter Composed of High - Performance Activated Carbon. Removes Free Chlorine, Odour, Organic Contaminants, Pesticides and Chemicals.
• Carbon Block Filter, Composed of High - Performance Carbon, Removes Trihalomethanes, Pesticides, Volatile Organic Chemicals and 99.95% of Giardia and Cryptosporidium Cysts.
• 3 x 100 US Gallon per day High Rejection Thin Film Composite Reverse Osmosis Membranes.

We strongly recommend that if you're mains water is via a water meter you will require a booster pump as the water meter reduces water pressure, please note this will greatly reduce wastage.

By using a 'Reverse-Osmosis' (R/O) plant, your mains water can be completely stripped of all minerals and contaminants, essentially producing pure H2O, or distilled water.

This R O water will usually have a TDS of perhaps 11ppm. Most of that 11ppm figure would actually be Carbon Dioxide, which makes the water acidic, but will quickly gas off, leaving you with a pH of around 7.

R/O plant water on its own is very dangerous for aquatic life, as it has absolutely no pH stability, and no mineral content. But, when mixed back in with dechlorinated untreated mains water, you can make the perfect water, which can give you superb results!

How I can achieve my 'ideal' water

Lets say your mains water currently has a TDS level of 335ppm. Contained within that reading is the KH, which runs at 11dH (190ppm). As far as growth and koi development are concerned, not really that good for your koi.

But, with an R O system that produces water with a near zero TDS, you can mix this water
with dechlorinated untreated mains water at a ratio of lets say 75% R O water, and 25% mains water, which results in a TDS of just 84ppm, and a KH of 2.75dH, which is more like it.

This may sound complicated, but provided that you know the KH value and TDS of your mains water before you mix it with R/O water, you can use the TDS meter to determine the KH value of your mixed water. In this case, if the mixed water TDS level rises above 84ppm, just reduce the flow of mains water a little, and if it's too low, then the flow is increased.

Running the above KH reading is perfectly safe if you carefully watch and make regular notes of your pond KH level. Obviously, if the KH depletes below the desired level, you will have to either change more water, or add a 'harder' mix of water.

Please note that Reverse Osmosis water contains no minerals, and hence is very
unstable. It is dangerous to use R/O water without mixing it with mains water.