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Liquid Fertiliser Tanks

Polymaster offers one of the most complete liquid fertiliser tank ranges available in Australia. Traditional flat-bottom bulk storage tanks run from 9,000L to 50,000L. The self-draining range gives you the ability to completely drain contents so nothing is wasted between mixes. Versatile fertigation mixing tanks are available if you blend on-farm. Browse by category below to find the right tank for your operation.

Ag - Customer Service Team Member

POLYMASTER LIQUID FERTILISER TANK SOLUTIONS

Find the Right Liquid Fertiliser Tank for Your Needs

Polymaster’s liquid fertiliser range is split into four categories.
Select a category below to view the full product range, specifications, and pricing.

Self-Draining Tanks

Complete Washdown Between Batches

If you need to fully empty and wash down between fertiliser mixes or seasons, the self-draining range is the right choice.

The fully self-draining base eliminates residue, minimising the risk of cross-contamination between different fertiliser types and ensuring no valuable product is wasted when the tank is emptied.

Suited to liquids up to 1.5 SG. Supplied with a complete fittings kit, including pre-assembled top fill pipework, set up specifically for liquid fertiliser.

Flat Bottom Tanks (9,000L-50,000L)

Bulk Fertiliser Storage

For properties receiving bulk tanker deliveries of pre-mixed liquid fertiliser, the flat-bottom range is the most economical storage solution.

Extra-heavy construction rated to 1.4 SG. Liquid fertiliser does not settle out or require constant agitation once stored, which minimises wastage and saves mixing time.

Liquidator level indicator included (support pole not included).

Fertigation Tanks

On-Farm Blending

For on-farm fertigation, Polymaster’s venturi fitout tanks provide safe, efficient mixing with no moving parts.

The venturi system uses recirculation to blend fertiliser evenly, with a self-draining base that eliminates waste when emptying. Resistant to most fertilisers and trace elements.

Ideal for vineyards, orchards, and any fertiliser dosing application feeding an irrigation system.

Accessories

Completing Your Setup

Top fill kits, liquid chemical transfer pumps, and fittings are available to complete your liquid fertiliser storage or blending system.

Our team can specify the right combination for your tank and application.

Highest Quality and Standards

Every Polymaster liquid fertiliser tank is certified, Australian-made, and engineered to handle the demands of agricultural and horticultural use across our harsh climate.

Food Grade Polyethylene

Food-grade polyethylene, certified to AS/NZS 4020 – the Australian standard for products in contact with drinking water.

ISO 9001 Quality Management

Polymaster holds ISO 9001 certification – the international standard for quality management systems.

Product Certification

Certified to AS/NZS 4766:2020 for polyethylene storage tanks.

Australian Made

Designed, engineered, and manufactured in Australia – built for our conditions and certified to our standards.

BULK LIQUID FERTILISER STORAGE

Bulk Liquid Fertiliser Storage, Straight from the Tanker

With a Polymaster storage solution, liquid fertiliser is transferred directly from the tanker into your tanks, making it easier and more cost-effective to fertilise your crop. Tank capacities range from 9,000L to 50,000L and are built tough in one piece, with no joins or seams, which reduces the risk of bulging or a costly split.

A primary advantage of a liquid solution over granular is the even distribution of nutrients throughout. Nutrient content is the same in every drop, making it easier to ensure each plant gets an even amount. Bulk tanker loads into heavy-duty polyethylene tanks remain the preferred and most economical way to store liquid fertiliser: it saves mixing time, the product does not settle out or need constant agitation, and wastage is minimised.

SELF-DRAINING LIQUID FERTILISER TANKS

Self-Draining Tanks Built for Complete Washdown Between Batches

Polymaster’s self-draining range gives farmers and agronomists a tank that empties completely between fertiliser mixes, allowing full washdown between seasons or blends and reducing the risk of contamination. By completely emptying, no valuable liquid fertiliser is wasted, saving on-farm costs.  

Engineered and designed to suit liquid fertilisers for the Australian market, with heavy-duty construction and Polymaster’s UV protection material. 

Key features: 

  • Completely self-draining tank base for 100 per cent drainage 
  • Suits liquids up to 1.5 SG 
  • Top fill kit – 2 inch (50mm) stainless steel camlock with ball valve, making tanker unloading easy 
  • Sight tube level indicator for a clear visual read of tank volume at all times 
  • 2 inch (50mm) stainless steel outlet with ball valve and camlock 
  • 90mm overflow and breather with mesh screen 
  • 600mm vented screw lid for easy access 
  • Delivered to site ready to go, with tanker coupling factory fitted 

LIQUID FERTILISER TANKS CASE STUDIES

Trusted by Australian Businesses to Deliver These Projects

Polymaster’s liquid fertiliser tank range is manufactured to the highest quality standards, holds product certification from an independent testing authority, and is trusted by some of Australia’s most recognised agricultural and horticultural operations.

DELIVERY AND DISTRIBUTION

Delivery Across Victoria, South Australia, New South Wales, and Queensland

Polymaster liquid fertiliser tanks are available through agricultural and rural stockists across Victoria, South Australia, New South Wales, and South East Queensland.

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