Poly Tanks
Poly Tanks

Plastic rainwater tanks (also known as poly water tanks) are a cost effective solution for rainwater storage is domestic, commercial and industrial applications. Waterplex® plastic rainwater tanks are available in capacities ranging from 720 litres to 46,400 litres.

Waterplex® plastic water tanks are made from UV stabilised polyethylene and comply with the Australian standard for manufacturing plastic water tanks (AS/NZS 4766 Polyethylene storage tanks for water and chemicals).

Plastic water tanks are available in either a slimline tank or a round tank shape. The best shape for you will be determined by your requirements and your site.

Poly Slimline
Poly Round
Under Deck
Septic Tanks

Follow these simple steps to determine the right size and shape water tank for your requirements:

Round plastic tanks are generally the cheapest option for rainwater storage. However, round tanks are the least efficient use of space when compares with other tanks shapes. If space is not an issue for you and you do not mind the look of a round plastic tank (or you can hide it on your property), then a round plastic tank is a great option.

If space is an issue for you, or you want to “hide” your rainwater tank along the side of your home, then a Slimline plastic rainwater tank might meet your needs. Please bear in mind that plastic rainwater tanks are made in a mould so there are limited sizes available – especially in slimline plastic rainwater tanks.

In order to find the tank best suited for you, you should:

  • Determine the amount of water storage you want to achieve
  • Work out your available space
  • Decide if want to buy a round or a slimline poly tank (round is cheaper but not as space efficient)
  • Review the product range of round poly tanks and slimline poly tanks on our website to find the size that fits your available space and gives you the water storage capacity you require
  • Call the team at Waterplex on 1300 72 66 70 to get a quote for supply and delivery

A full range of accessories is available for all of our plastic water tanks - click here:

The quality of rainwater is determined by your total rainwater harvesting installation. Water quality is impact by your catchment area (your roof) and anything on it, your gutters, downpipes, internal tank condition and any equipment you connect to your tank.

The team at Waterplex can advise you on what you need to meet your needs. Some of the key components you will need to consider for your rain harvesting solution include:

  • first flush devices
  • rainheads with filtration (e.g. leaf eater, leaf beater etc)
  • rainwater tank pumps
  • rain water / mains water switching devices (to ensure you will always have water)
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Why Waterplex

The Waterplex Group are specialists in producing innovative solutions for storing & harvesting water without taking up all of your valuable space around the home. Waterplex are a leading provider of water tanks in Australia and we have been part of the Australian water industry for over 10 years. We have built up a reliable national network of resellers and highly experienced installers that deliver a "supply and install" solution that is second to none.

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