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.
Shop Popular Categories
Water Tanks
Durable above-ground water tanks for rural, residential, and commercial storage.
Underground Tanks
Underground water storage for sites where space, access, or visibility matters.
Slimline Tanks
Narrow-profile tanks designed for homes, boundaries, and other restricted spaces.
Firefighting Tanks
Designed to provide reliable water storage solutions for fire protection.
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
Before you build, speak with us.
From ultra-strong underground tanks for carparks to aesthetically appealing slimline water tanks that sit neatly alongside a townhouse, we’ve got an extensive range to suit every budget and requirement. Designed to blend discreetly with your surroundings, and manufactured tough to last for many years, our liquid storage solutions will help you save money and offset environmental impacts.
When it’s time to build, build with Promax. Above ground, or underground, we’ll fit right in.
Over the years we’ve come across most situations in Water Storage and love working with our clients to design a solution which helps them achieve their specific objectives. Our team are ready to discuss your needs and create custom solutions for you.
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.