Silver impregnated ceramics

Ceramic filter purifier water is generally free of bacteria and contaminants and is healthy and good-tasting. The filter is can be merely wiped clean and used long-term. Ceramic filter candles have a complex pore structure, which has unparalleled filtration properties. The ceramic is impregnated with silver to make it self-sterilising. Silver inhibits the growth of bacteria. Another benefit to ceramic filter purifier water is that it retains the natural minerals such as calcium, potassium, and magnesium. Having minerals in the drinking supply is very important for health reasons.

Advantages:

+ Proven reduction of bacteria and protozoa cyst and particles in water > 99.99%
+ Cleanable filter surface for prolonged life.
+ Anti-bacterial action, no boiling required.
+ Retains Essential Minerals.
+ No Power Required.
+ Cost effective to run.

Disadvantages:

- A low flow rate of 1-3 liters per hour in non-turbid waters.

GAC (Granular Activated Carbon)

Carbon absorption is one of the most widely used water filtration systems. A process of heat treating creates ‘activated’ carbon with microscopic pores and fissures that trap chemical and organic impurities in a process that mimics the filtering properties of the earth.

Removes:

Hydrogen Sulfide, Radon, Chlorine, Volatile Organic Compounds, Pesticides, Benzene, Colors, Odors.

Advantages:

+ Carbon absorbs objectionable odors, flavors, organic compounds, and many hazardous chemicals.
+ Works well in conjunction with other filtration systems. Removes objectionable odors and flavors.

Disadvantages:

- Most will not remove heavy metals.
- Filters must be changed or filtering capacity will be compromised.

KDF

KDF process media work to reduce or effectively remove chlorine and heavy metals and control microorganisms. KDF media exchange electrons with contaminants, changing them into harmless components. During their reactions, electrons are transferred between molecules and new elements are created.

KDF media control the build-up of bacteria, algae and fungi in organic based media such as GAC filters and in-line carbon filters, extending the life of the carbon. KDF process media kill bacteria by direct electrochemical contact and by the flash formation of hydroxyl radicals and hydrogen peroxide, both of which interfere with a microorganism's ability to function.

Advantages:

+ Remains effective at higher water temperature
+ Significantly extend life and efficiency of carbon (GAC) filters
+ Recyclable
+ Effectively remove chlorine, iron, hydrogen sulfide, lead, mercury, calcium carbonate, magnesium, chromium, and other heavy metals
+ Control microorganisms: bacteria, algae, and fungi.

Disadvantages:

- Best when combined with other filtration technologies for full spectrum protection
- KDF filters do not, by themselves, remove organic chemicals (pesticides, disinfection byproducts, MTBE, etc.), or parasitic cysts (giardia and cryptosporidium).
- KDF filters need to be backwashed periodically with hot water to remove the insoluble contaminants.

Micro filtration

Micro filtration removes sediments and suspended materials from water by passing it through a porous filtering material. They do not remove very fine particles or dissolved substances and are often used before or after other filtration systems.

Removes:

Sediment

Advantages:

+ Remove all suspended impurities larger than pore size

Disadvantages:

- Does not remove dissolved substances