Rainwater Filtration & Treatment Systems by Southern Filtration in Wollongong — safe, clean rainwater treatment
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Family-owned · Free water testing

Safe, Sustainable Use of Harvested Rainwater

Professional rainwater filtration and treatment across the Illawarra — debris, sediment and bacteria removed so your tank water is safe and usable, designed to meet safety standards.

0403 942 773Free, no-obligation quotes

Get a free rainwater filtration quote

Across Wollongong, Shellharbour, Kiama, Dapto & the wider Illawarra

Same-business-day response.

Response within 24 hours · No obligation

About this service

Make the most of your rainwater supply with professional filtration and treatment solutions. Our systems remove debris, bacteria and contaminants to ensure safe, usable water — perfect for irrigation, household use, or eco-conscious water management. We design solutions that comply with safety standards and local regulations, built specifically for the Illawarra region's water conditions.

What we cover

  • Multi-stage filtration for tank water
  • UV sterilisation to kill bacteria and viruses
  • Removes leaves, sediment and organic matter
  • Safe for drinking, cooking and bathing
  • Protects plumbing and appliances
  • Designed for Illawarra rainwater conditions

Enquiries

Rainwater Filtration — common questions.

Rainwater tanks can harbour bacteria, sediment, leaves and organic matter. Filtration plus UV treatment makes it safe for household use — we can test your tank water free of charge first.
Let's get started

Ready for cleaner, safer water?

Get started today with a free water test or request a quote for professional installation. We respond within 24 hours.

0403 942 773Mon–Sat 7:00am – 6:00pm

Get a quote

Or ask for your free water test — we reply within 24 hours

Response within 24 hours · No obligation

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