GramLine Why Gram Water Tanks General Information

GramLine manufactures a range of quality polyethylene water tanks. Our water tanks come in a variety of colours, shapes and sizes to suit Australian backyards.

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Water Tanks
Why Gram Water Tanks

Smooth wall design

Thicker at the base tapering up to the dome top, no centre pole required on any of our tanks.

Not all tanks are the same

You may have read or heard other tank manufacturers claiming more ribs for strength, or the traditional look. However the truth of the matter is that in the rotational moulding process ribbed or corrugated designs actually create a weakness in the tank. This is due to the internal corners in the mould. When the plastic powder rotates in the mould it hits the peak of the rib and has a natural tendency to flow either side of the highest point of the corner creating thin sections in the tank wall on the internal corners.

Below are drawings of common tank wall cross sections. You can see the thinner wall sections at the internal corners of the ribs and corrugations. This is why ‘GramLine Tanks’ have a straight wall design and domed roof with no internal corners; this guarantees a uniform wall thickness with no weak points in our tanks.

Corrugated Wall Tank	Ribbed Wall Tank


Typical Smooth Tank Wall

All tanks made from 100% food grade polyethylene

UV Stabilised as per AS/NZ 4020 Standards. This means the tank will not taint your water and will survive in the harsh Australian outdoors for many years to come.

All tanks come fitted to your specification from the factory, and include brass outlet, ball valve, screened overflow and inlet mesh strainer.

Tanks tested with ultrasonic thickness gauge

Ensuring each tank has the correct wall thickness and meets both Australian standards and GramLine quality standards.

Reasons for buying a water tank

You need to satisfy council requirements or BASIX regulations.
You may be environmentally friendly and wish to contain water run-off.
You need water for livestock and farm use.
You require water to top your pool and maintain your garden.
You may need to have a reserve of water for fire fighting purposes.
You may want to have independent water not relying on council supplies.
It is possible that some reservoirs may run out of water during drought conditions.

Product Range

The only COMPLETE Steel Privacy Fencing System from Plinth to Lattice

Designed & Constructed by the GramLine Team.
Contact Number: 02 9757 1199
Toll Free Number: 1800 GRAMLINE
(1800 472 654)

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