Rainwater filtration

The Complete Home Filtration Rainwater Wall (CHF-RWW) is a purpose-built rainwater tank filtration system that combines high-capacity sediment filtration with an ultraviolet disinfection system to neutralise bacteria and microorganisms commonly found in tank water.

Engineered for rainwater tanks and mixed water supplies, the system is designed to handle the higher sediment loads and organic matter associated with roof catchments and storage tanks. For households that switch between rainwater and treated town water throughout the year, an optional silver-impregnated carbon block can be included to provide additional protection. This helps improve taste and reduce chemical contaminants when town water is in use, ensuring consistent water quality regardless of the source.

Together, the multi-stage filtration and UV disinfection system delivers chemical-free protection before water reaches your taps, giving households confidence in their water supply year-round.

OVER 2000 5 STAR REVIEWS

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The benefits of rainwater tank filtration

  • Clean, natural rainwater

    Our rainwater tank filter system reduces sediment, rust, and other metallic particles, along with organic debris entering your home from roof catchments and gutters. Combined with UV disinfection, it supports safer drinking water by neutralising harmful microorganisms without the use of chemical additives.

  • Protect plumbing and appliances

    While rainwater is naturally low in dissolved minerals, sediment and debris can still cause wear over time. Tank filtration helps prevent dirt and organic matter from entering pipes and appliances, supporting longer service life and cleaner fixtures.

  • Support a sustainable lifestyle

    Filtering rainwater makes it easier to rely on your tank for everyday use, reducing bottled water consumption and plastic waste. Chemical-free UV disinfection also avoids runoff concerns and supports environmentally responsible water use.

  • Confidence from tank to tap

    Rather than limiting rainwater to gardening or washing, whole-system rainwater filtration allows you to use your tank water confidently throughout your home. Clean, treated rainwater supports everyday comfort without compromising safety.

  • What sets us apart

    Built for rainwater performance

    Complete Home Filtration CHF-RWW Standard rain tank filter
    Multi-stage sediment filtration
    Reduces sediment, rust and metallic particles
    UV-C disinfection
    Protection against bacteria and micoorganisms
    Chemical-free treatment
    High flow rate for whole-home use
    Configurable for rainwater and mixed water supplies
    Configurable for rainwater and mixed water supplies
    Outdoor-rated for Australian conditions

    How it works From tank to tap

    • Step 1

      Rainwater enters the system

      Water collected from your roof and gutters flows from the rainwater tank into the filtration system. A pressure pump may be used where required to maintain consistent flow and pressure into the home.

    • Step 2

      Primary sediment filtration

      Rainwater passes through a washable primary filter that captures larger debris and organic matter. This first stage protects the rest of the system and improves water clarity before finer filtration takes place.

    • Step 3

      Secondary filtration tailored to your water source

      For standard rainwater use, a fine secondary sediment filter removes smaller particles and metallic debris, preparing the water for UV disinfection. For homes using a combination of rainwater and treated town water, this stage is configured with a silver-impregnated carbon block. This helps reduce chemical contaminants such as chlorine and improves water taste before the water reaches the UV chamber.

    • Step 4

      Chemical-free UV disinfection

      Filtered water then passes through a UV chamber, where ultraviolet light neutralises bacteria and microorganisms before the water enters your home, delivering safe, clean water without the use of chemicals.

    What our customers are saying

    OVER 2000 5 STAR REVIEWS

    With a proven track record across Perth and years of trade expertise, we deliver reliable solutions for every home.

    Frequently asked questions

    Our complete line of filtration products

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    Complete Home Filtration reverse osmosis filtration systems combine multi-stage carbon and sediment filtration with an ultra-fine, semipermeable membrane to reduce dissolved salts, heavy metals, fluoride, pharmaceuticals and other contaminants that can pass through broader water filtration systems.

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    Whole-home water filtration system unit

    Whole home filtration

    Upgrade every tap with a Complete Home Filtration whole home system. Treating all water at entry, our tailored systems deliver cleaner, better quality water for drinking, cooking and bathing, providing consistent, reliable filtration without relying on point-of-use filters or bottled water.

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    Servicing & maintenance

    Complete Home Filtration systems are designed for easy DIY maintenance, with expert support available whenever you need it. Our local team is available 24/7 to help with urgent requests or regular business hours for general questions.

    Home filtration guides & resources

    Complete Home Filtration’s whole home water filtration system is perfectly designed to handle the unique water needs of Australian households, eliminating the need for other water filters

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    Reverse Osmosis System (RO) Technical Sheet Download PDF (651 Kb)

    Reverse Osmosis System (RO) Technical Sheet

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    Download PDF (651 Kb) Last modified 17 Mar 2026
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    CHF-6000 Whole Home Water Filtration System Technical Sheet

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    Rainwater Filtration System Technical Sheet Download PDF (1 Mb)

    Rainwater Filtration System Technical Sheet

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