3 Stage Undersink Tank, Dam & Bore water system, $390.00 (Model No PSI-300-UV) PSI water filters has done extensive research to find a solution to problems associated with tank water filtration. The traditional method of using a ceramic cartridge don't work very well as they can block (Bio-Film) in as little as 3 weeks. We supplied many combinations of various filters free to some of our customers around Australia to find an effective system that was economical to run and it works. using a polyspun 1 micron (nominal) sediment filter first, then a 6 watt UV sterilizer and a Pentek CBR2-10  carbon cartridge for chemical and heavy metals removal. The real problem with un-chlorinated water is the presents of harmful bacteria and Giardia Cysts, the traditional method of using very fine filters is that they are a strainer and don't kill harmful elements so they accumulate in the system alive and can multiply. We know this approach is not the cheapest way but it is the most effective and in the long run cheaper to operate. UV Light, NaisUV ultraviolet sterilizer CH-UV-6W, flow rate 5,500 litres per day (3.8 litres per minute) , UV output 16.7 u/cm , 6 watt at 44 volts (includes transformer) Click here for selection Advice Replacement cartridge price with us $50.50 (set) or (replacement cartridge set if ordered with unit $32.00) Replacement globe $45.00 ($34.00 if replacement is ordered with the unit) 10 year warranty

Whole House System WH-002-RF-Silver (un-chlorinated water system for Tanks, Dams and soft water bores), $590.00 (includes delivery and GST) this systems first stage uses a 20" big white housing with a 1, 5 or 20 micron polyspun sediment filter (your choice), optional is 5,10 or 20 micron washable pleated sediment filter for an extra $15.00, the second stage uses a 20" big white housing with a GAC carbon cartridge for chemical treatment.This re-fillable carbon cartridge has silver nitrate impregnated carbon, if you use standard carbons in un-chlorinated water filter systems (without a UV steraliser) the carbon simply becomes a bacteria breeding ground, silver nitrate doesn't allow bacteria to grow on it's surfaces. These housings are the Genuine PENTEK units. Big White housings are rated to 90 psi pressure and the system includes the two cartridges, two housings, powder coated wall bracket, housing spanner,  housings are 1" BSP thread with 1.5" also available (extra). Housing specifications

This system uses a re-fillable carbon cartridge, this system is very cheap to run ,it costs just $45.00 for the 4 litres (2 kg) of silver carbon required to re-fill the carbon cartridge. 5 year warranty Optional Stainless Steel Bracket plus $20.00, 1" AGA Ball valve optional +$20.00 with 1" nipple. Also optional is a set of 3 pressure gauges for $100.00 the set of 3.

The Whole House systems can be ordered with twin single brackets so a UV steriliser can be placed between the two housings, you can view the UV Sterilisers by clicking here on this page link.

Whole House System WH-002B-RF-Silver (un-chlorinated water system for Tanks, Dams and soft water bores) $505.00. (includes delivery and GST) This re-fillable carbon cartridge has silver nitrate impregnated carbon, if you use standard carbons in un-chlorinated water filter systems (without a UV steraliser) the carbon simply becomes a bacteria breeding ground, silver nitrate doesn't allow bacteria to grow on it's surfaces. This systems first stage uses a 20" big blue housing with a 1, 5 or 20 micron polyspun sediment filter (your choice) optional is 5,10 or 20 micron washable pleated sediment filter for an extra $15.00, the second stage uses a 20" big blue housing with a GAC silver carbon cartridge rated for 300,000 litres for chlorine and chemical treatment. Using the 20" big blue/white sediment cartridge. Pleated sediment filters have the advantage of being cleanable several times. These housings are a Taiwanese copy of the Genuine PENTEK big blues and are certified to Australian Standard AS3497. These Big blue housings are rated to 90 psi pressure and the system includes the two cartridges, two housings, powder coated wall bracket, housings are 1" thread.

This system uses a re-fillable carbon cartridge, this system is very cheap to run as the sediment cartridge is cleanable several times and it costs just $45.00 for the 4 litres (2 kg) of carbon required to re-fill the carbon cartridge. Optional Stainless Steel Bracket plus $20.00 1 Year Warranty, 1" AGA Ball valve optional +$20.00 with 1" nipple. Also optional is a set of 3 pressure gauges for $100.00 the set of 3.

The whole house water filter unit is designed as a point-of-entry system that filters water directly as it enters a home plumbing system from a municipal or private water source. The whole house water filter provides clean, filtered water to every water source in the household.

Most whole house water filters use a twin-stage filtration system in which most, if not all, harmful contaminants are removed from the water supply. The first stage of filtration removes any sediment materials in the water that may clog the chemical filter, reducing its effectiveness. The second stage then uses filtration involve bituminous-activated carbon or/and coconut-shell activated carbon media to filter pesticides, remnants of biological matter, and other harmful chemicals.

Most whole house filter systems sold in Australia use the 20 inch version of the standard type of housing which uses a cartridge with a diameter of around 70 mm (2.5") which is too small and seriously affects both pressure and flow, a 20" standard (70 mm) cartridge also falls well short for effective treatment as well as their rating is 7.6 litres per minute which is below the flow rate of a shower using a AAA rated shower head (9 litres per minute) let alone a normal shower that flows 15 litres per minute, our systems use the larger 20 inch x 4.5 inch filter cartridges.

Our systems use what is referred to in the industry as BIG BLUE / BIG WHITE housing in their 20 inch versions, a 20 inch big blue/white will flow and treat at about 3.5 times the standard (70 mm) 20 inch cartridges and about 8 times the flow rates for the housings. The 10 and 20 inch big blue/white housings have a 0.2 psi pressure drop at 30 litres per minute, the cartridges and housing models below will drop the mains pressure less than 1 psi when the cartridges are in good condition.

Although we stock other cartridges like the Pentek CBC-20BB which is 0.5 micron and available on request we seriously don't recommend a 0.5 micron cartridge in a Whole House system as a cartridge that fine will drop the pressure a minium of 5 psi but will also block very quickly.

Pictured here is a Big Blue/White housing cap on the left with a standard 2.5" housing cap on the right. As you can see there is a huge difference between a standard size system and a big blue/white, click on image to enlarge.

Pictured here is a standard size 10" housing on the left, the centre housing is the 10" big blue/white and on the right is the 20" big blue/white housing.

The Pentek Big Blue and Big White are made by the same company with the Big White being the superior housing as it has a better O ring setup, the white versions cost more than their brother housings the Big Blue, specifications are the same for both. Housing specifications, click on image to enlarge

Here are images of standard 10" pleated sediment filter & 10" and 20" bug blue/white, as you can see there is a big difference in their size.

Click on image to enlarge

REPLACEMENT SEDIMENT FILTERS whole house

Big blue/white 20 micron filter cartridges

10" x 4.5" cartridge $45.00 ea also available in 1, 5, 10 & 50 microns

Polyspun 20" x 4.5" cartridge $50.00 ea 1, 5 & 20 microns

Pleated 20" x 4.5" cartridge $65.00 ea 5, 10 & 20 microns

Pleated 20" x 4.5" cartridge $85.00 ea also available in 1 & 50 microns

Includes postage if ordered with a carbon filter of similar size otherwise plus post.

REPLACEMENT CARBON FILTERS & MEDIA whole house

Pentek RFC20-BB, $165.00 includes postage

Matrikx +5 coconut 20" x 4.5" 2 micron extruded coconut carbon $125.00 includes postage

Matrikx CTO/2 20" x 4.5" extruded 5 micron carbon cartridge $110.00 includes postage

Other brands available

Re-fillable 20" x 4.5" carbon cartridge (full) $75.00 includes post

Re-fillable 10" x 4.5" carbon cartridge (full) $60.00 includes post

2 kg carbon to re-fill $30.00 plus post, Silver Nitrate Impregnated Carbon (anti-bacterial) $45.00

Chloramine carbon $25.00 per kg