Tanks

When your property isn't on mains sewer, the septic tank is the workhorse the whole system leans on. The Rapid Plas 3,000L Underground Septic Tank is our own poly design — a tough, self-anchoring alternative to concrete that goes in without a poured anchor slab, built in Tamworth and certified to AS/NZS 1546.1. Its internal partition treats wastewater in two stages before it moves through to your absorption trench, and it's sized to suit households of one to five people.

For properties beyond the reach of mains sewer, a dependable septic tank is the quiet foundation of a well-run onsite wastewater system. This 3,000L polymer septic tank takes everyday wastewater from the kitchen, bathroom and laundry, and uses an internal partition to settle and treat it in two stages before the effluent moves on to your absorption trench. Moulded from tough polypropylene, it won't corrode or break down the way concrete can, and at 133kg, it's light enough to get into position without heavy lifting gear.

The 14,000L Crown Force™ Rainwater Tank offers the perfect balance of high-capacity storage and a compact footprint, making it an ideal choice for residential properties, hobby farms, and rural applications. As part of Rapid Plas’s premium large tank range, it features the iconic corrugated profile that reflects Australia’s rural heritage while providing superior wall strength.

The RapidPlas 2,250L Low Profile Tank is designed for tight spots with limited height clearance. It delivers generous water storage while keeping a lower stance, making it great for installing under windows, decks, or eaves.

22,500L Low Profile tank is the perfect solution for those who need significant water storage but want to maintain a lower visual profile. Whether you're working with height restrictions or simply prefer a tank that blends more seamlessly into the landscape, this model offers the heavy-duty performance you need without the vertical bulk.

The Rapid Plas 22,500L (5,000 Gallon) Rainwater Tank is engineered for Australians who require serious water security without compromising on style.

Massive Capacity for Maximum Water Security The RapidPlas 27,000L (6,000 Gallon) Rainwater Tank is the heavy-duty staple for Australian rural and residential properties. Designed to provide a large volume of storage, this tank is your ultimate safeguard for home use, livestock, and large-scale irrigation.

Looking for serious water storage with zero compromise on strength or performance? The Rapid Plas 32,000L RapidPlas Round Rainwater Tank is engineered for durability, capacity, and ease of use—ideal for rural properties, farms, and anyone needing bulk water supply. Key Features: ✅ Heavy Duty Smooth-Sided Design – Built tough with thick-wall, seamless construction to withstand the harshest Australian conditions. ✅ Self-Supporting Roof – No centre pole required, making installation and internal access easier. ✅ 4 Moulded Lifting Lugs – For safe and efficient positioning on site. ✅ UV Stabilised Polyethylene – Made from RGBlend20, a food-grade, BPA-free material designed to resist sun damage and extend tank life.

The RapidPlas 4,500L Round Corrugated Tank is a versatile mid-size option, giving you plenty of storage without dominating your outdoor space. Its classic corrugated style looks great in any setting, while its durable, UV-stabilised build ensures long-lasting performance.