Mains & stormwater detention tanks

Water storage solutions for your development

Commercial water storage and detention solutions

For new commercial installations needing to manage water flow, Puraflo provides a range of cost-effective steel water tanks. Our tank shells are made from galvanised steel, eliminating the need for sacrificial anodes and providing durable corrosion protection without ongoing service costs.

Mains water supply registered break tanks

Ideal for backflow protection, our lined steel tanks can be configured to be fully compliant with the registered break tank requirements in Australian Standard AS3500 “Plumbing and Drainage

Storm water drainage retention and distribution tanks

Suited for both gravity and siphonic fed drainage systems, our stormwater tanks can be fitted to your specific requirements with high-flow outlets, staged outputs and big diameter overflows.

Commercial steel water tank standard features

0.8mm corrugated steel tank shell with Z450 galvanised coating
0.42mm Galvalume corrugated roof sheeting
Flexible polyethylene liner. 700% elongation at break ASTM D638 2,000min HPOIT ASTM D5885
Designed to Loading Codes AS1170 Part 1, 2 & 4 and Steelwork Codes AS4100 & AS4600
10 year warranty as standard, extended warranty available

Standard tank sizes for mains and stormwater detention tanks

Below are the standard sizes we manufacture for commercial tanks. If your requirements are outside of these sizes, our Australian manufacturing facility can also manufacture custom sizes.

Tank Diameter	Height - 2.2m	Height - 2.9m	Height - 3.6m	Height - 4.3m	Height - 5.0m	Height - 5.6m
3.9m	26.4kL	34.6kL	42.8kL	-	-	-
5.2m	46.8kL	61.5kL	76.1kL	90.6kL	105kL	-
6.5m	73.3kL	96.1kL	119kL	141kL	164kL	187kL
7.8m	106kL	138kL	171kL	204kL	237kL	269kL
10.4m	187kL	246kL	304kL	363kL	421kL	479kL
11.7m	238kL	311kL	385kL	459kL	533kL	606kL
13.0m	293kL	384kL	475kL	566kL	657kL	748kL
13.0m	293kL	384kL	475kL	566kL	657kL	748kL