While a single large tank is space-efficient, a multi-tank setup offers superior water security. By linking two or more tanks with ball valves, you can isolate a single tank for cleaning or maintenance without losing your entire water supply. 

Multiple tanks also let you expand your capacity over time as your needs grow. If you were considering a single large steel tank, a linked poly setup often provides a more flexible, rust-proof and manageable alternative.

Our Crown Force design is the result of years of in-house engineering and iteration. It features a unique domed roof with interlocking fins that provide incredible structural integrity. 

Unlike some large tanks that require a central internal pole for support, our roof is entirely self-supporting. This means there is no pole to rot, rust or collect debris inside your water.

No. The corrugations provide extra strength and wall integrity, allowing the tank to withstand the immense pressure of thousands of litres of water. Because our tanks are a single-moulded design, there are no seams, joins or weak points, virtually eliminating the risk of splitting.

We believe a tank should be ready to work the moment it arrives. While many manufacturers treat essentials as added extras, every RapidPlas tank includes our Premium Fit-Out as standard:

• 4 Heavy-Duty Lifting Lugs: Four integrated lugs make installation safer and easier, allowing balanced crane or tractor lifting without damaging the tank walls.
• Stainless Steel Strainer: A high-grade stainless steel inlet strainer that won't perish or warp in the sun, keeping debris and pests out of your water for the long haul.
• Light/Dust Cover: A light-blocking cover that prevents light entry, stops algae growth and keeps your water clean and clear.
• Dual Moulded-In Outlets: Two 1.5" BSP outlets, where most manufacturers provide only one, so you can run a pump off one and link a second tank off the other without emptying your primary storage.
• Moulded-In Strength: Outlets are moulded into the tank during manufacture, making them far stronger than outlets drilled in during finishing, which are prone to leaking or splitting under pressure.
• Ball Valve: A high-quality ball valve so you can connect your pump or another tank.

A correct base is essential for the longevity of your tank and your warranty. We recommend a level, stable pad made of reinforced concrete or compacted crusher dust. You can find our step-by-step guide in our Installation Tips Blog, or watch our Site Prep Video to see exactly how it's done.

Many RapidPlas tanks 9,000L and over are delivered directly to your site at no additional cost within our standard delivery zones. Contact our team to enquire about shipping and delivery.

Important note: for our largest 32,000L tanks, some locations may require permits or pilot vehicles due to road restrictions. This is rare, but we recommend talking to our sales team about your specific location upfront. 

What to expect: our dedicated Delivery Video outlines how to prepare your property for the truck and what happens on the day of delivery. 

Small tanks: tanks of 7,000L and under can be delivered for a small fee or delivered free to your closest RapidPlas dealer.