Whether you’re storing water, harvesting the rain or installing septic tanks, Promax has a liquid storage solution that will fit your construction site just as neatly as it will fit your budget.
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Water Tanks
Durable above-ground water tanks for rural, residential, and commercial storage.
Rain Harvesting
Capture and store rainwater for the garden, household use, or as a backup supply.
Septic Tanks
Heavy-duty septic solutions for rural and lifestyle properties without mains drainage.
Diesel Tanks
Safe, reliable on-site diesel storage for rural properties and working farms.
Talk to our team.
Our team knows this range inside out. Tell us about your build, what you're trying to achieve, where it's going, or what you're unsure about and we'll come back with a clear recommendation. No jargon, no obligation.
- Personalised product recommendations for your specific project
- Spec, compliance and sizing guidance included
- Fast replies — usually within one business day
Your water, your way.
From compact rainwater tanks for the garden to large-scale drinking water storage for properties off the grid, we've got an extensive range to suit every need and budget. Designed to blend with your surroundings and built tough to last for many years, our liquid storage solutions give you the freedom to manage your own water supply on your terms.
When it's time to take control of your water, Promax has you covered. Above ground or below, there's a solution that fits.
Over the years we've helped all kinds of people find the right storage solution for their situation, whether that's a small tank to top up the garden through summer, or a full rural setup with drinking water, rainwater harvesting and septic. Our team are ready to talk through your needs and find the right fit.
Easy to specify
Easy access to technical specs, drawing files and compliance documentation.
Easy to install
We engineer ease and practicality in for the every link in the value chain.
Built for purpose
Every vessel is tailored to your requirements - from access ports and fittings to seismic restraints.