Rainwater Filtration and Sterilisation Systems

Rainwater tank filter systems help protect the entire home from the effects of dirt, sand and silt which can corrode pipes and become lodged in the hot water service, dishwasher, toilet and bathroom taps, which could lead to costly repairs. Not to mention the unsightly discoloration of toilet bowl, bath tubs and your washing being soiled and stained from dirt.

We supply and install a large range of water tank filtration systems including the high quality Filtatank range of unique ‘Free Standing’ systems which are ideal for installation in exposed areas like next to your rainwater tank and pump.

filtatank-top-viewThese systems are fully plumbed in 1″ brass and stainless steel pipework and require no complex or expensive installation. Simply position the system on the ground, connect the water discharge from your pump into the side port of the unit and the water outlet back to your house and it’s complete. The systems include a heavy duty, lockable polyethylene cover protecting from direct sun damage, rain, frost and ice.


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Do you realise that the upset stomach you may often have is probably not something you ate, it’s most likely the unfiltered rain water that you drink!

The amount of sludge that is captured by the Whole House Rainwater Filter Cartridges in just 12-months is enough to shock most of our clients. Some insist that there rainwater is clear and clean for most of the year. What they fail to understand is that not only is the sludge on the bottom of their rainwater tank the main cause, but also that rainwater holds a great deal of dirt particles in suspension and every time it rains this increases. Their pressure pump effectively vacuums the sludge from the rainwater tank and pumps it directly into the house. If consumed, your body has to filter out all the sludge!

Droppings from birds and possums that fall on your roof end up in the tank, where they form E-coli, Campylobacter, Cryptosporidium, Giardia and other dangerous bacteria and germs.


Animal Waste can be lethal if it contaminates your rainwater supply!


How big is a micron?

How Filtration is achieved


Filtration of dirt and solids from the rainwater or mains water supply through our twin or triple filter cartridges.
Firstly, the Rainwater passes through a 20″ x 4.5″ polyester pleated cartridge, which captures suspended solids in the water such as dirt, rust, algae etc. The cartridge is rated to 10 Microns.

Second, the water passes through a 20″ x 4.5″ activated silver carbon block cartridge. Carbon filtering is a method of filtering that removes contaminants and impurities, utilizing chemical adsorption. The cartridge assists in the removal of  colour, taste, odour, chlorine and some germs from the rainwater supply. The cartridge is rated to 5 Microns.

Third, in the triple filter system option the water passes through an ultra-fine 20″ x 4.5″  poly spun filter cartridge which removes finer silt particles for water perfection.

viqua-uv-steriliserSTAGE 2

Sterilization of the rainwater supply is achieved through a high quality Viqua Ultraviolet Sterilisation system before it enters the house.

Ultra-Violet water sterilisation systems are an effective and economical way of eliminating 99.9% of harmful bacteria form the rainwater supply. The water is exposed to Ultra-Violet light as it passes through the stainless steel chamber. This process exposes any harmful bacteria to Ultra-Violet light at a wavelength of 254nm. This damages the DNA of the bacteria and eliminates its ability to reproduce.

Whole House Twin Cartridge Rainwater Filter System

Water Tank Filters and Rain Water Filtration Systems
Twin Cartridge Rainwater Filter System
Whole house rainwater filters protect the home from dirt and particles that may be suspended in the water supply. The More Info »

Whole House Triple Cartridge Rainwater Filtration System

Water Tank Filters and Rain Water Filtration Systems
Triple Cartridge Rainwater Filtration System
Whole house rainwater filters protect the home from dirt and particles that may be suspended in the water supply. The More Info »
More Info »

Whole House Triple Cartridge Rainwater Filtration System with Aqua-Pro Water Sterilization Unit

Water Tank Filters and Rain Water Filtration Systems
Rainwater Filtration System
Whole house rainwater filters with Ultraviolet Sterilization protect the home from dirt and germs that may be present in the More Info »
More Info »


changing-filtatank-cartridgeDo the filters restrict flow or pressure in my house?

Our Whole-House rainwater filter cartridges are large in size, which allows for greater water flow resulting in no noticeable flow or pressure restriction.

**Please note: Many filter systems on the market are not approved**

All our filtration housings are pressure tested and approved to Australian / New Zealand Standards
AS/NZS 3497: 1998 Drinking water treatment units – plumbing requirements AS 3737: 2001. Method of pressure cycling resistance of pipes and fittings.

How long do the filter cartridges and U.V. light bulbs last?

Filter cartridges and U.V. bulbs last for 12 months. We offer to service your system every 12 months replacing spent U.V. bulbs and dirty filter cartridges with brand new filters ensuring clean, fresh water all year round. Filter cartridges and U.V. lamps can be purchased from our online store.triple-filter-replacement-cartridges-with-viqua-u-v-lamp

What about unit quality & warranty?

All Filtatank filter systems are installed with a 12 months labour warranty and include:

  • 10-year Viqua UV chamber warranty
  • 5-year structural support frame warranty
  • 3-year Viqua electrical and hardware component warranty

Should I have my rainwater tested?

We can send a sample of your water in for testing however the results will vary throughout the year. The test results may return good at the time however as the seasons change things such as Autumn leaves, summer sun heating water pipes increasing bacteria, dirt and organics when it rains, slime and bacteria fed in to tanks from under-ground pipes known as ‘wet systems’ can quickly change the good test result into a hazard with you unaware of the change.

Example: You have a rainwater sample tested in June and the result is ok. During November that same year bacteria breeds to unsafe levels in your tank from unclean rainwater entering the rainwater tank. Suddenly members of the family becomes sick yet you ruled out the tank because you ‘had it tested and it was ok’.

The best solution is to install a permanent filter barrier between your family and the rainwater supply. If your rainwater quality varies throughout the year, you will be assured that your home and family have a protective barrier in place.

The Tank Doctor provides water filters and house rainwater filtration products Australia-wide, including Adelaide, Sydney, Melbourne, Brisbane, Perth, Canberra, Tasmania & Darwin. We sell water filters that filter tap water, and rainwater filtration systems.
Some of the suburbs in Adelaide South Australia The Tank Doctor services include Mclaren Flat, Mclaren Vale, Happy Valley, Willunga, Meadows, Flaxley, Macclesfield, Strathalbyn, Kangarilla, Echunga, Prospect Hill, Ashborne, Clarendon, Chandlers Hill, Cherry Gardens, Ironbank, Upper Sturt, Onkaparinga Hills, Crafers, Crafers West, Longwood, Scott Creek, Stirling, Bridgewater, Aldgate, Mylor, Coromandel East, Coromandel Valley, Blackwood, Belair, Glenalta, Horthorndene, Mt Barker, Littlehampton, Hahndorf, Verdun, Nairne, Balhannah, Oakbank, Woodside, Lobethal, Lenswood, Forest Range, Cherryville, Norton Summit, Basket Range, Ashton, Uraidla, Summertown and Piccadilly.