WATER TANKS
Introducing Dart Concrete's Premier Water Tanks: A Pinnacle of Strength and Versatility in New Zealand's Water Storage Solutions.
With a remarkable capacity of up to 22,500 litres (5,000 gallons), our tanks are designed to meet and exceed all of your water storage needs. Engineered for excellence, Dart Tanks are more than just containers; they are a symbol of resilience and innovation.
What sets Dart Tanks apart? It's our exclusive high-tensile, welded reinforcing mesh system. This intricate construction ensures an intrinsic robustness that stands unmatched in the industry. Dart Tanks aren’t just tough; they're New Zealand's toughest.
But strength is just the beginning. Our tanks offer flexible options for complete burial, preserving your scenic views and valuable lawn space. Unlike conventional tanks, Dart Tanks do not rely on the lid for sidewall strength, opening up creative uses, such as transforming them into elegant plunge pools.
Experience the Dart Concrete difference. Where functionality meets aesthetics, and where engineering meets artistry. Trust in Dart Tanks for a water storage solution that's not only strong but also smartly designed to fit seamlessly into your landscape.
For more information or to explore customization options, please contact us today. At Dart Concrete, we're redefining water storage, one tank at a time.
Features
Discover the Dart Concrete Advantage: Our water tanks are more than just a storage solution; they are an embodiment of innovation, reliability, and efficiency. Here's what sets Dart Concrete water tanks apart:
Superior Construction: Crafted from high slump certified concrete, our tanks are single-piece molded designs that can be partially buried (standard) or fully buried up to 200mm underground (Heavy Duty).
Unmatched Thickness: With walls and bases 25% thicker than our biggest competitor’s products, Dart Tanks are built to withstand the test of time.
Cost-Efficient Installation: The robust 125mm thick base reduces preparation costs for most install types, providing you with an economical solution.
Optimal Temperature Control: Designed to keep your water up to 9 degrees cooler than other storage methods, our concrete tanks ensure that your water stays fresh.
Algae Prevention & Better Taste: By keeping the water in the dark, Dart Tanks prevent algae growth, resulting in purer and better-tasting water.
Reliability in Emergencies: In the event of a fire, you can count on our concrete water tanks for reliable and convenient water storage.
High Wind Resilience: Dart water tanks stand firm without the need for additional restraints even in high wind zones.
No Building Consent Required: Offering ease of installation, a Dart water tank doesn’t require building consent, streamlining your project.
Customization for Traffic: Our center column option, suitable for light vehicle traffic, lets you install the HD tanks under your driveway, maximizing your space.
Litres | Length | Width | Height | Weight |
10,000L | 2500mm | 2500mm | 2350mm | 6.2t |
22,500L Standard | 3500mm | 3500mm | 2700mm | 10.5t |
22,500L Heavy Duty | 3500mm | 3500mm | 2800mm | 11t |
Manufacturing Excellence in Water Tanks
At Dart, our water tanks are meticulously crafted to meet New Zealand standards NZS 3106, using materials conforming to NZS 3422 and NZS 3109:1997. With high-strength concrete and circular steel reinforcement (welded steel mesh), we offer robust and versatile water storage solutions that are suitable for various installation requirements. Our lifting anchors, integrated into the walls and floors, facilitate even the most complex installations.
Choose the Right Concrete Water Tank for Your Needs:
Standard Water Tanks: Perfect for residential and commercial use, our standard water tanks can be buried with up to 100mm of light, free-draining fill such as bark or scoria. If you would like to use a ride on lawnmower or topsoil, you will need to go with the heavy duty option due to the extra weight. With dimensions of 3.5m width, 2.7m height, and a weight of 10.5 tons, these tanks are designed exclusively for pedestrian traffic.
Heavy Duty Water Tanks: For more demanding applications, our heavy-duty concrete tanks can be buried up to 200mm underground. These durable tanks, sealed on delivery, can withstand both pedestrian traffic and wheel loads, offering you more flexibility.
For the best results with your water storage solution, always ensure your water tank is filled before the back-filling process post-installation.
Explore our range of concrete water tanks and find the perfect fit for your water storage needs. Contact us today at Dart – your trusted provider of concrete tanks in New Zealand.
SITING INSTRUCTIONS FOR WATER TANKS
WATER TANK SITING INSTRUCTIONS
Our concrete tanks are delivered with a specialized Hiab truck equipped with a 52-ton crane at the rear deck. Please follow these guidelines to ensure a smooth delivery process:
Site Requirements for Offloading:
The truck must park on a level surface for offloading, and there must be sufficient space for the truck to reverse up to the tank site.
The outrigger/stabilizing legs will extend up to a total of 10 meters. They must rest on solid ground, not fill, to ensure stability.
Offloading from the side or on uneven ground is not possible.
The crane's reach is approximately 3-4 meters from the rear of the truck, depending on the tank model and size, provided these conditions are met.
Please Ensure:
Clear Access: Remove any obstructions such as overhead wires, branches, or gate posts. Although the driver will take utmost care, we cannot be held responsible for damage resulting from restricted access.
Stable Ground: The ground must support up to 30 tons and be free of hazards like holes or drains. If the site is wet, please arrange for appropriate machinery.
Level Site and Foundation: Ensure an even distribution of weight on solid ground, not fill. Place digging material appropriately for truck access.
Crane Leg Stability: Extend crane legs on flat, level, and solid ground – not fill – preferably in compliance with NZS 3604.
Tank Site Preparation: Prepare a flat and level site, setting the tank onto a base of 7mm granular fines on compacted material. Box in the fines if there's a risk of washout, and ensure the area is free of protrusions.
Timing and Additional Support:
Please have your site prepared for our truck as we allow 30 minutes per tank on site.
Site preparation is the purchaser's responsibility, but we are happy to conduct a site visit prior to delivery to assist you. Any site work by our company will be at your cost, and delays may incur extra charges.
By following these instructions, you enable us to deliver your tank efficiently and safely. If you have any questions or need further assistance, please don't hesitate to contact us.
SEPTIC TANKS
Dart Septic Tanks are not just functional storage units; they are thoughtfully crafted solutions designed to suit a variety of applications. From residential to commercial, we've got you covered with our diverse range of sizes:
Versatile Options: Whether you need a standard tank from 4500L to 6000L or a dual-chamber variant, we offer the perfect fit. For larger commercial requirements, our 10,000L and 22,500L tanks are readily available.
Preinstalled Convenience: Each of our septic tanks is equipped with a precision-engineered 1mm septic filter, easily accessible via caps atop the tank. Our dual-chamber models provide two separate spaces for filters, ensuring optimal functionality.
Effortless Installation: We understand the importance of a hassle-free experience. Our septic tanks, weighing approximately 4 tons, can be maneuvered on site by digger or seamlessly placed in position by our Hiab trucks.
Quality Assurance: Crafted to meet the stringent NZS3107:1997 standards, Dart Septic Tanks are designed to be buried with up to 600mm fill cover. While our standard tanks handle pedestrian traffic, we also specialize in manufacturing tanks that can endure wheel loads when needed.
At Dart Concrete, we believe in creating solutions that resonate with your needs and seamlessly integrate with your environment. Our septic tanks are more than just products; they are a commitment to quality, innovation, and your satisfaction.
Explore the Dart difference today and find the septic tank that's crafted just for you. Feel free to contact us for personalized assistance.
Single Chamber Septics
Single chamber septic systems, ideal for installations in light, free-draining soil, utilize a gravity-fed process for waste management. Once the waste enters the tank, it settles and undergoes filtration through a biofilter, effectively removing all solids. Explore our range of single chamber waste systems – a solution that ensures quality filtration and environmental safety.
Litres | Length | Width | Height | Weight | Invert In* | Invert Out* |
4,500L | 3000mm | 1780mm | 1510mm | 4t | 1270mm | 1190mm |
6,000L | 3400mm | 1630mm | 1750mm | 5.2t | 1445mm | 1365mm |
*Invert is measured from the bottom of the tank to the bottom of the inlet/outlet pipe
Dual Chamber Septics
Dual chamber systems provide superior filtration compared to single chamber units, minimizing bio waste in drainage lines. With two chambers, waste settles first before draining through an initial filter and then settles again in the second tank before being pumped into the drainage field. The second chamber's unique design can also function as a pump chamber, enabling pumping from the tank when your drainage field is situated above the septic system. Explore our efficient dual chamber systems – a versatile solution for effective waste management.
Litres | Length | Width | Height | Weight | Invert In* | Invert Out* |
4,500L | 3000mm | 1800mm | 1450mm | 4.5t | 1270mm | 1190mm |
6,000L | 3400mm | 1630mm | 1750mm | 5.5t | 1445mm | 1365mm |
*Invert is measured from the bottom of the tank to the bottom of the inlet/outlet pipe
Pump Chambers
Pump chamber systems are crucial in locations where wastewater needs to be elevated, particularly in areas with high water tables. The pump chamber facilitates pumping from the tank when the drainage field is positioned above the septic system. This design aids in keeping the first tank settled, without stirring up the waste, making it an effective solution for wastewater management in challenging terrains. Consider our pump chamber systems for efficient handling of your wastewater needs.
Litres | I.D | O.D | Height | Weight |
750L | 750mm | 900mm | 1550mm | 1.2t |
1,800L | 1380mm | 1500mm | 1400mm | 2.5t |
RETENTION TANKS AND DETENTION TANKS: STORMWATER SOLUTIONS
Retention Tanks: Retention tanks are specifically designed to capture and 'retain' stormwater, providing an essential solution for household water use. By collecting rainwater, retention tanks allow any overflow to be directed either to the local council's stormwater system or to an engineered soakage pit. If you're looking for effective stormwater management or water-saving solutions, retention tanks could be the right choice for your property.
Detention Tanks: Detention tanks, on the other hand, work to slow down the flow of stormwater. Engineered with a unique design, the stormwater enters the tank through an inlet and gradually trickles out through an orifice at the bottom. Detention tanks are ideal for controlling the flow of rainwater, reducing the risks of flooding, and helping in erosion control.
Choose the Right Stormwater Management Solution: Whether you're in need of a retention tank to harvest rainwater or a detention tank to control stormwater flow, our expert team can guide you through the options that best suit your needs. With years of experience in water management, we offer tailored solutions to your stormwater challenges.
To learn more about retention and detention tanks, or to explore other water management solutions, please contact us today.
FLOOD WASH TANKS
Flood washing systems use surges of water to clean the yard. Washing times can be reduced to less than one minute. Use either fresh water, water from the plate cooler or storm-water or pump your effluent pond back up to your floodwash tank.
Flush tanks by Dart Concrete are produced in accordance with NZS.3106:1997 They are manufactured in 40MPa concrete for high durability and each unit is water tested prior to delivery.
OIL & GRIT INTERCEPTORS
Interceptor Traps are designed as an addition to Cafes, Restaurants or Commercial Kitchens for the protection of wastewater treatment systems.
CESSPITS / CATCHPITS
Dart Concrete manufactures a selection of precast concrete Cesspits, designed to align with regional infrastructure specifications for stormwater. These units play an essential role in preventing unwanted debris from blocking drains, contributing to more efficient and less expensive maintenance of drainage systems.
Our standard sizes available are:
300mm x 300mm x 600mm
300mm x 450mm x 740mm
450mm x 450mm x 1020mm
450mm x 675mm x 1200mm
450mm x 675mm x 1800mm
Trust in Dart Concrete's expertise and quality manufacturing process for your stormwater management needs.
POROUS WELL LINERS SOAKAGE RINGS
At Dart Concrete, we also manufacture 900mm x 900mm and 900x 450mm porous well liners. These are expertly designed to facilitate the dispersal of stormwater into the ground. Our well liners are an essential component for effective stormwater management, especially within the Hamilton City region.
In addition to our high-quality well liners, we provide 100mm thick precast lids, available with or without 100mm PVC pipe access points. These access points enable easy connection of downpipes, ensuring a seamless integration within your stormwater system.
Typically, two of our well liners can serve approximately 40m2 of roof area, making them an efficient solution for handling stormwater.
CONCRETE RISER RINGS
At Dart Concrete, we expertly manufacture a versatile range of precast concrete riser rings, designed to elevate the level of manhole access to suit your specific needs. These rings play a crucial role in adjusting the height of manhole covers, providing flexibility and safety in utility and infrastructure projects.
Our precast concrete riser rings are available in the following sizes, all featuring 600mm diameter access openings:
100mm
150mm
200mm
300mm
600mm
900mm
Explore Dart Concrete's collection of precast concrete riser rings and discover the perfect solution for your manhole access requirements.