
Underground Poly Tanks
With four unique models to choose from, our range of Underground Poly Tanks are ideal for projects where the tank needs to be located under a yard/garden or even under a driveway. They are suitable for the containment of rainwater, stormwater, greywater and blackwater.
Please find below details on each model for your consideration.
For a no obligation, free quote on the supply of an Underground Poly Tank to suit your project, please contact our friendly and expert team on 1300 977 121
or info@unitytanks.com.au

With a Unity Tanks Underground Poly Tank, you receive all of the benefits of a water tank without it taking up valuable, aboveground space.
Capacity (Litres/Gallons)
Image
Specs/Dimensions
Features
1600 Litres
(350 Gallons)
Overall Diameter: 1200mm.
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Depth: 2000mm.
Access Panel: 600mm x 600mm.
Weight (empty): 137.5kg.
Available with a choice of Class A, B or D Trafficable Access Lids.
Certified to AS/NZS 1546.1
Ribbed and reinforced design to enhance structural integrity.
Delivery within 250km of Sydney or within the ACT is complimentary.
Supplied with anchor points at base of tank.
2000 Litres
(440 Gallons)
Overall Diameter: 1200mm.
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Depth: 2500mm.
Access Panel: 600mm x 600mm.
Weight (empty): 200kg.
Available with a choice of Class A, B or D Trafficable Access Lids.
Certified to AS/NZS 1546.1
Ribbed and reinforced design to enhance structural integrity.
Delivery within 250km of Sydney or within the ACT is complimentary.
Supplied with anchor points at base of tank.
3000 Litres
(660 Gallons)
Overall Diameter: 1750mm.
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Depth: 2165mm.
Access Panel: 600mm x 900mm.
Weight (empty): 275kg.
Available with a choice of Class A, B or D Trafficable Access Lids.
Certified to AS/NZS 1546.1
Ribbed and reinforced design to enhance structural integrity.
Delivery within 250km of Sydney or within the ACT is complimentary.
Supplied with anchor points at base of tank.
5000 Litres
(1100 Gallons)
Overall Diameter: 1925mm.
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Depth: 2500mm.
Access Panel: 600mm x 900mm.
Weight (empty): 375kg.
Available with a choice of Class A, B or D Trafficable Access Lids.
Certified to AS/NZS 1546.1
Ribbed and reinforced design to enhance structural integrity.
Delivery within 250km of Sydney or within the ACT is complimentary.
Supplied with anchor points at base of tank.
To request a quote on the supply of one of our Underground Poly Water Tanks, please contact our team on:
Which Access Lid Do I Require?
As with the general suitability of an Underground Poly Tank for your project, the type of lid required should be determined in consultation with a certified civil engineer.
However, the following can be used as a guide as to the purpose of the different grades of access lids that we can supply with our Underground Poly Tanks.
Class A Access Lid
Approximate Nominal Wheel Load: 330kg
Typically used in areas with pedestrian and bicycle traffic only.
Class B Access Lid
Approximate Nominal Wheel Load: 2,670kg.
Typically used for residential properties and footpaths with light vehicle traffic.
Class D Access Lid
Approximate Normal Wheel Load: 8,000kg.
Typically used in areas where heavy vehicle traffic is expected.

Free Delivery Direct To Your Property.
Your brand new water tank will be delivered with a smile to you on a specialised tank delivery vehicle by one of our fully trained and customer-focused transport professionals.
Please feel free to contact us to discuss your particular delivery requirements.
Contact Unity Tanks

ABN 43 634 437 335
Phone:
1300 977 121Email: info@unitytanks.com.au
Postal Address: 1 Barratt Street Hurstville NSW 2220.
(Administration Office)
Hours Of Operation
Monday to Friday
8am - 5pm
Saturday
9am - 1pm
Copyright © 2017. Unity Tanks Pty Ltd.
Underground Poly Water Tanks Sydney, NSW, Canberra, ACT.