DOMESTIC WATER TANKS

COSMO Water, Provides solutions throughout Queensland with the supply and installation of domestic potable underground water tanks. We have been providing water management solutions for over 20 years. Each project will be assessed by one of our system designers, to maximize the potential for each installation.

Home Water harvesting Systems:
• Any size and any shape • Area above tank can be fully utilized • Approved for Potable use • Water Tanks installed underground • Under gardens or house slab • High quality filtration units available to maximise water quality • Installed by qualified professionals
• Installation and water tank guaranteed for 10 years • Water is stored in optimum conditions • Final connections provided by certified plumbers • Government rebates available

For our no obligation quotation please fill out our enquiry form.

Installation Process

Underground water tanks are versatile and easy to install. Once Comso is finished, you wouldnt even know there was underground water tank under your lawn.

Project Gallery

View a range of underground water tank solutions that Cosmo has successfully provided for a range of clients.


30,000 Litre Domestic Tank

This 30,000 tank sits on a small house block. This is a great way to use a small area to great advantage.
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Samsonvale

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Pool Conversion - Pelican Waters

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Government Rebates Available for underground water tanks

Government Rebates Available!

Find out more on National Rainwater and Grey-water Initiative here >>