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Sale ends Fri 19 June The Big Tank Sale is on Every 10,000L+ water tank reduced. Online-only pricing. Shop the sale

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- Water Tanks
  
  Large Water Tanks | 10,000L+
  Small Water Tanks | < 6,000L
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Products
- Water Tanks
  
  Large Water Tanks | 10,000L+
  Small Water Tanks | < 6,000L
  Slimline Water Tanks
  Rainwater Harvesting Accessories
  View All Water Tanks
- Underground Tanks
  
  Stormwater Detention Tanks
  Stormwater Retention Tanks
  Septic Tanks & Wastewater
  Underground Accessories
  View All Underground Tanks
- DSU & Transport Tanks
  
  Dust Suppression Units
  Transport Tanks
  Baffle Ball System
  Water Delivery Units
  View All DSU & Transport Tanks
- Fire & Engineered Tanks
  
  Firefighting Tanks
  Chemical & HSNO Tanks
  Insulated Tanks
  Custom Engineered Tanks
  View All Solutions
- Agriculture Tanks
  
  Bulk Water Storage
  Proliq Tanks
Shop by Industry
Resources
- About Us
  
  The Promax Story
  Sustainability
  Contact Us
- Tools & Calculators
  
  View All Tools
  Slimline Specification Tool
  Underground Specification Tool
  Septic Tank Sizing Tool
  Rainwater Tank Size Calculator
  SMAF Calculator
  Detention PRE-POST Calculator
  Enduro Underground Partial Volume
- Downloads & Technical Resources
  
  All Downloads
  Request A Specifiers Pack
  Warranty Info
  Lead Times
- Knowledge Centre
  
  FAQs
  Knowledge Articles
  Case Studies
  Recommended Installers
Custom Tanks
Contact

Log in

Products
Shop by Industry
Resources
Custom Tanks
Contact

Log in

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Underground & Stormwater

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