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Is your rainwater safe to drink?

Fix brown water, bad smells and low pressure, and choose the right filter for your home and tank. Plain English, from the team that cleans and filters tanks every day.

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    The Tank Doctor with a water filter system
    The ultimate guide to safe tank water

    8 short sections, real prices, and a yearly care checklist you can stick on the fridge.

    • Find out what's causing your water problem
    • Match a system to your home, tank and budget
    • Know when you need UV, and when you don't
    1000+ customersacross Australia
    Built in Australiagalvanised frames, hand-assembled
    10-year warrantyon the Viqua UV chamber
    Free shippingAustralia wide, on every system
    Sound familiar?

    Most tank water problems can be fixed at the tank

    These are the problems we hear about most. The guide explains what causes each one and what actually fixes it.

    Brown or cloudy water

    Dirt and tannins wash off the roof and build up in your hot water service and appliances.

    A musty smell or odd taste

    Leaves and sludge break down on the tank floor. You notice it most in a cup of tea.

    Upset tummies

    Bird and possum droppings can wash E. coli and Giardia into the tank. Kids feel it first.

    Weak pressure at the tap

    A tired pump or a blocked filter. Upstairs showers usually suffer first.

    Filters that clog in weeks

    One small cartridge is trying to catch everything, so you're forever buying more.

    Dirty water after rain

    Fresh rain stirs up sludge right where the outlet draws from.

    What's inside

    Everything you need to pick the right filter

    1. 1
      Common tank water problemsWhat's going wrong, and why
    2. 2
      Sizing it to your homeTwin or Triple, and whether you need a pump
    3. 3
      Matching your tank sizeFrom 1,000 L to 100,000+ L off-grid
    4. 4
      Water flow and blockagesWhy pressure drops, and how to keep it up
    5. 5
      Where it goes and how it looksFree-standing or wall-mounted
    6. 6
      Do you need UV?Matched to how serious your problem is
    7. 7
      Prices and warrantiesThe full range side by side
    8. 8
      Installing and looking after itSetup, yearly care and service videos
    Download free guide
    Who wrote it

    Written by people who clean tanks for a living

    The Tank Doctor has been cleaning rainwater tanks and building filters for over 15 years. We've helped 1000+ customers across Australia, and we wrote this guide to answer the questions our customers ask us most.

    Our Filtatank frames are laser cut, welded and hand-assembled in Australia, then fitted with Italian housings and a Canadian Viqua UV.

    What our customers say

    ★★★★★

    I can not recommend The Tank Doctor highly enough! When we built our new 480 sq/m house with 130,000 litres of stainless steel water tanks, we wanted to install a filtration system that we wouldn't have to have issues with or need to worry about. Best decision we made.

    Rachel Shortland
    ★★★★★

    I have been using the Tank Doctor's products for nearly 10 years now and the product quality, service, communication and attention to detail is truly first rate. David White and the team at the Tank Doctor are the best in the business.

    Andrew Work
    ★★★★★

    Dave from the Tank Doctor was super helpful and to his word. We ordered the Triple Free-Standing Rainwater Filtration With UV + 78LPM Pump and I am super impressed with the quality of build and finish. It beats any system I looked at by a mile.

    Scott Godfredson

    Swipe for more reviews

    Quick questions

    Is the guide really free?

    Yes. Enter your name, email and postcode and the PDF downloads straight away. Free shipping Australia wide applies to every system in the guide.

    Do I need to know my tank size?

    No. The guide helps you work it out, and matches a system to small town tanks right up to 100,000+ L off-grid.

    Does it include prices?

    Yes. Every free-standing and wall-mounted system is listed with current prices and warranties.

    Can I just talk to someone?

    Of course. Call 0411 218 323 with your tank size and a photo of the site.

    Find out what's in your water, and how to fix it

    Free 10-page guide. Free shipping Australia wide. Prefer to talk? Call 0411 218 323.

      Instant PDF download. Read our
      privacy policy.