Water Filtration

What is Zeolite?

Zeolite is a naturally occurring aluminosiliate mineral used in the water industry for filtration and ion exchange. It can also be synthetically produced. It is a more efficient media than sand for the filtration of water and is very effective for ion exchange, ion removal and water softening. Like standard ion exchange resin, once its …

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What are megohms?

Megohms is a unit of measurement just like metres is a unit of measurement. 1 Megohm is equivalent to 1,000,000 Ohms and is used to measure the electrical resistance or the ability of water to conduct electricity. The more pure, water is, the greater the Megohms and the lower the ability of the water to …

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What is an Anode?

An electrode, rod or pole through which a low voltage electric current flows.  This low voltage causes a process called electrolysis whereby salts in the water collect on the electrode or the electrode erodes by oxidation.

What is Anthracite?

This is a form or type of activated carbon. Anthracite is a hard, compact variety of mineral coal that is graded to size and quality and used in commercial water filters due to its very high carbon content and low impurities. High grade and ultra high grade anthracite are generally only used in water filtration.

What is Arsenic?

A naturally occurring element that forms a number of poisonous compounds.  Organic arsenic is less harmful than inorganic.  Inorganic arsenic compounds are mainly used to preserve wood, insecticides, pesticides and weed killers.  Pentavalent arsenic is generally the most common form found in surface waters while the trivalent form is found mainly in ground waters and …

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What is Ballast?

These are an electronic device that regulate the flow of current through a Ultra Violet (UV) lamp.

What are Ball valves?

These are a type of isolating valve containing a circular ball with a hole through it.  They are turned 90° or ¼ turn to open or close.

What is Butterfly valve?

This is a type of isolating valve containing a circular disc inside a pipe.  It is normally used in large diameter pipes and often geared to make it easier to open and close.

What is Reverse Osmosis?

This water purification process has gained in popularity over the last 20 years since it was first used commercially in 1968. It is used extensively for purifying sea water and uses membrane (a thin film or skin through which water molecules can pass) technology. The easiest way to explain reverse osmosis is by firstly explaining …

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What is Absolute Micron rating?

This is used to accurately define the grade or level of filtration delivered.  An absolute rating means 100% of particles larger than the filter rating (usually in microns) will be removed or entrapped on or within the filter medium i.e. 1 micron absolute will remove or entrap all particles greater than 1 micron as opposed …

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What is Activated Carbon?

This is a filter material made from coal or coconut shell carbon that has been processed causing the carbon to pit and change shape much like popcorn. This gives it an enormous surface area to absorb chemicals and odours from water and air. It is black in colour and comes in powder, granulated or extruded …

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What is Algae?

These are simple tiny plants or seaweed that grow and multiply if nutrients are present and chlorine or sanitizer levels are low.  Most algae are invisible except in millions.  In sunlight they convert carbon dioxide into oxygen by photosynthesis.  They are larger than bacteria and viruses but generally smaller than 5 microns and vary in …

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What is Alkalinity?

This is the sum of all alkaline chemicals in the water.  A measurement of all carbonates, bicarbonates, hydroxides and other alkaline substances.  It is closely related to pH and known as the buffering capacity of the water. A low alkalinity can cause the pH of the water to fluctuate widely and rapidly with small additions …

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What is Alum?

Alum or Aluminium Sulphate is a flocculant product used in water treatment to coagulate (bind together) colloidal very fine dirt particles and other organic materials so they fall to the bottom of a tank where they can be removed.  This process then leaves the water clear.  Alum is also used to remove phosphorus from water. …

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What is Ambient Temperature?

This is the current or average air temperature in the room/location or environment. This is usually 18°C to 28°C.

What is Ammonia?

This is a colourless gas with a sharp offensive odour.  It can be manmade or produced naturally and dissolves easily in water.  It is made up of 1 nitrogen and 3 hydrogen atoms and is very alkaline in water based solutions.  It is found in many household cleaners and chloramines; now used extensively in town …

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How do Carbon Filters work?

Carbon water filters are generally made from either charcoal or coconut carbon. While coconut carbon is considered the best or healthiest for drinking water treatment, charcoal is still used by some manufacturers as a more economic alternative. The carbon is either broken up and graded into a granular form or ground into a powder and …

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