WATER TREATMENT OPTION TO REDUCE CHLORINE AND OTHER CHEMICALS PLUS UNPLEASANT SMELL AND TASTE
The POINT OF ENTRY Carbon treatment - the most frequently chosen unit and the best value for money.
A single neutral coloured media tank (10" Diameter by 44" High) located near the water valve often located in the garage, filled with 15Kg/30 Litres of loose Granular Activated Carbon granules so all the water entering the house runs through the generous column of Carbon.
A Manual control valve is fitted to backwash and rinse the carbon periodically.
Three fittings required: IN, OUT & BACKWASH - which can be connected to a drain or used for watering.
This unit has seven and a half times the capacity of the 20” refillable cartridge as below
and 15 times the smaller 10”size.
Cost to supply: 10” x 44” media tank with manual backwashing valve: $895.00+GST.
Cost to supply: 10” x 54” media tank with manual backwashing valve: $1050.00+GST
Cost to supply: 12” x 52” media tank with manual backwashing valve: $1280.00+GST
The blue tank shown below is a 10” x 54” high
It is followed by a 10”BB housing fitted with a pleated washable sediment filter for $225.00+GST
Cost to supply both: $1275.00+GST = $1466.26
Cost to supply with larger 20”BB Housing & filter = $1388.00+GST = $1596.20


ALTERNATE POINT OF ENTRY TO THE HOUSE = to treat all water entering your home.
A 20” Housing with 1” ports fitted with a refillable 20” cartridge full of carbon media to adsorb Chlorine and other chemicals before the water enters the house – this is usually located after the Valve in the Cold water pipe - often located in the garage wall.
The refillable cartridge holds 5 Litres of carbon and is far more economical to refill with loose Carbon granules than replacing the entire cartridge (and saves the landfill).
A spanner is provided to open the housing.
The loose carbon media in the cartridge can be easily tipped out when expended and/or the smell of Chlorine returns and then replaced with fresh carbon.
We supply 5 Litres of loose Granular Activated Carbon granules for $74.80+GST = $86.02


Two 10”housings complete with mounting bracket, bolts and opening spanner plus a pleated washable sediment filter and refillable carbon cartridge; $573.00+GST = $658.95
Two 20”housings as above with 20”filters $862.00+GST = $991.30
EVALUATION AND COMPARISON OF CARBON WATER TREATMENT SYSTEMS
The chlorination of the Christchurch City and other community supplies has caused many people to be concerned – and seeking solutions.
There are a range of treatment options available – with varying initial and maintenance costs involved.
POINT OF ENTRY CARBON WATER TREATMENT
To treat all water entering a home or business.
- One Australian-based company with local agents offers Fibreglass Reinforced Plastic (FRP) tanks fitted with specific cartridges inside, with capacity of 6 to7 Kg / 5L of Carbon.
Test results show chlorine reduction at 62-3%.
A claim is made of greater than 90% reduction of free and total chlorine.
Cost: Approx $2000.00
Replacement cartridge: Approx $700.00 - A NZ company offers a twin filter system of two 10” BB Housings fitted with a sediment filter and a carbon cartridge with capacity of approx 1Kg/ 2 Litres.
Cost: Approx $2500.00 to $3,000.00
Replacement cartridges sold only in sets: Approx $170.00 plus delivery.NOTE: This NZ Company was found guilty (as a result of a Commerce Commission enquiry) of multiple charges of misleading customers, unsubstantiated claims and misleading representations. The company was fined $450,000.
- Sue Kelly Water Systems Ltd has a range of generous whole house units for any property.
Replacement Granular Activated Carbon media is available per bag, Kg or Litre.10”x 44”(15Kg/30 Litres) of Carbon in FRP media tank & manual valve: $895.00+GST = $1029.25
Replacement cost: 15Kg/30 Litres to replenish 10x44 tank: $265.10+GST = $304.8610”x54” (20Kg/40 Litres) of Carbon in FRP media tank & manual valve:$1050.00+GST = $1207.50
Replacement cost: 20Kg/40 Litres to replenish 10x54 tank: $346.80+GST = $398.8212”x 52” (25Kg/50 Litres) of Carbon in FRP media tank & manual valve: $1280.00+GST= $1472.00
Replacement cost: 25Kg/50 Litres to replenish 12x52 tank: $408.50.00+GST = $469.77
Media tank 10”diameter by 44”high fitted with a manual control valve to backwash and rinse the carbon periodically – to clean out grit, dirt and sediment and prolong the “life” of the carbon.
Carbon capacity: 30 Litres.
10”BB Housing fitted with a pleated washable 5 micron sediment filter to protect all appliances in the home.
Cost to supply both: $1120.00+GST = $1288.00
We can arrange installation by experienced local plumbers or DIY.


