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BWT1-MG

1000 litre Plastic Water Tank

Colour
Mist Green
Heritage Green
Black
Beige
Light Grey
Dark Grey
Slate Grey

1000 litre Plastic Water Tank for Home Garden & Header Tank Storage

Our 1000L polyethylene water tank offers an ideal water storage solution for homeowners seeking reliable rainwater harvesting, garden irrigation, or header tank applications. Designed with UV-stabilized, food-grade materials, this robust tank combines functionality with durability for long-term water conservation needs. Unlike smaller capacity options, this 1000L tank provides substantial storage volume for larger gardens, small farms, or as a primary header tank for household water systems.

Key Features & Benefits

Perfect for the urban gardener, our 1000L tank is the compact, capable workhorse for everyday water storage. It's designed to fit neatly into smaller spaces, providing a reliable supply for your vegetable patch, flower beds, and general garden use without the complexity of larger systems.

  • Compact 1000L Capacity: The ideal size for most home gardens, providing ample rainwater for irrigation while maintaining a small footprint perfect for patios, side yards, and urban sections.
  • UV-Stabilized Polyethylene Construction: Built to withstand the New Zealand sun, preventing algae growth and ensuring your tank remains durable and maintenance-free for years to come.
  • Food-Grade Safe Material: Ensures your harvested rainwater is perfectly safe for use on edible gardens, herbs, and all your precious plants.
  • Simple, Lightweight Design: making installation straightforward for the DIY enthusiast.
  • 2" (50mm) Hansen BSP Outlet: Features a robust, industry-standard Hansen outlet for a secure and leak-free connection to your hose or irrigation system right out of the box.

Technical Specifications

Specification
Capacity 1,000 Litres
Material Medium-Density Polyethylene (LDPE)
Colours Mist Green, Heritage Green, Light Grey, Dark Grey, Slate Grey, Beige and Black
UV Protection Yes, Full UV Stabilised
Food Grade Yes, Safe for Potable Water
Inlet & Outlet Standard 2" (50mm) BSP Threaded Fittings
Dimensions (Diameter x Height) Approximately 1200mm x 1100mm
Lid Approximately 450mm
Weight (Empty) Approximately 35 kg
Best For Residential Gardens, Rain Harvesting, Emergency Storage

Delivery or Collection

Details
Delivery Estimate Typically 3-4 Weeks across Upper North Island
Shipping Cost Calculated at checkout based on your location.
Collections We often have a number of these tanks in stock at 21 Akatea Road, Glendene. These Tanks are relativly large and would fit in a large van or on a trailer.
Packaging Product is shipped as a Water tank without any wasteful packaging.
Installation This is a DIY-friendly product. Ensure the site is flat, stable, and clear of sharp objects.

Tank Standards

  • Potable Drinking Water: AS/NZS 4020:2005
  • Food Contact Requirements: AS/NZS 2070
  • Polyethylene Water Tanks (Material): AS/NZS 4766:2020

Versatile Uses for Your 500L Tank

Our compact 1000L tank is the perfect-sized solution for urban gardeners and homeowners. It's designed to fit neatly in a standard backyard yet holds enough water to make a real difference to your water bills and garden health.

  • Garden Irrigation: The most popular use! Connect a hose to the 2" Hansen outlet to water your lawn, flower beds, and vegetable patch with chemical-free rainwater.
  • Rainwater Harvesting: Place it under a downpipe from your shed or roof to collect free water, reducing your mains water usage and bills.
  • Vegetable Garden Watering: The food-grade material makes the water perfect for your edible garden, helping you grow thriving organic produce.
  • Emergency Water Supply: Be prepared for unexpected water outages with 1000 litres on hand for essential cleaning and sanitation needs.
  • Hobby & Home Use: A great source of water for washing the car, topping up the paddling pool, or cleaning garden tools.
  • Need a bit More? We have a 2,000 litre water tank that fits into the same space just taller at 2100mm.

Downloads

Water Tank Installation, Maintenance & Warranty Manual

Download our Manual above for more information.

Frequently Asked Questions

FAQ: Is the 1000L tank suitable for use as a primary water supply for a tiny home?

This is an important question for tiny home living. While a 1000L tank can be part of your water system, we generally do not recommend it as the sole primary water source for a full-time tiny home, especially if you will be relying on paid water deliveries. This is because water delivery trucks typically carry a minimum of 8,000 to 12,000 litres per load, and you are charged for the entire delivery. Filling a single 1000L tank this way is therefore not cost-effective. Furthermore, the limited roof space on a tiny home restricts how much rainwater you can collect, meaning you might struggle to keep the tank replenished through rainfall alone with regular use.

However, this tank is an exceptionally versatile and highly effective solution in two specific scenarios:

  1. Trickle Supply: If you have access to a slow but constant water source, such as a small spring, a low-yield bore, or even a regulated town supply connection, the 1000L tank is perfect. It acts as a storage reservoir, allowing you to accumulate this trickle of water over time for use when you need it.
  2. Greywater Recycling: This is one of the best uses for a tank of this size. You can plumb your tiny home's greywater (from showers, sinks, and laundry) into this tank. The stored water can then be reused for flushing toilets or irrigating your garden, dramatically reducing your overall fresh water consumption and environmental footprint.

In summary: For a self-sufficient primary supply, we recommend looking at our larger 10,000L tank. But for supplementing your system, managing a trickle supply, or creating an efficient greywater recycling setup, the 1000L tank is an ideal and cost-effective choice.

Is the 1,000L water tank suitable for drinking water?

Yes, your 1000L tank is manufactured from premium, UV-stabilized polyethylene that is certified to food-grade standards. This makes it entirely suitable for storing safe drinking water (potable water) when correctly set up. For optimal water quality, we recommend installing a first-flush diverter for rainwater collection and performing periodic maintenance as needed.

How do I install my new 1,000 litre plastic water tank?

Installation is straightforward. Choose a location that is flat, stable, and can support the weight of a full tank (1,000L of water weighs 1,000kg). A level concrete pad or a compacted base of crusher metal (GAP 7 Stone) is ideal. Ensure the area is clear of sharp objects that could damage the base. Once positioned, you can connect your downpipe to the through a hole you need to drill into the tank and using a Rubber Tank Seal, Install an Overflow, and attach a hose to the outlet fitting or connecting it to a pump.

We also have Easy Connect diverters from your down pipe for small tanks like this, give us a call to discuss 09 390 2209

Does the tank come with a warranty?

Yes, we stand behind the quality of our products. This 500L water tank comes with a 20 year manufacturer's warranty against defects. Please refer to our warranty policy page, download our manual just above or contact us for specific terms and duration.

Can I connect multiple 1,00L tanks together?

Yes, you can daisy-chain multiple tanks to increase your total water storage capacity. This requires additional plumbing fittings like tank connectors. It's important to plan your layout so that the tanks are on the same level to ensure they fill evenly.

What maintenance does a plastic water tank require?

Plastic water tanks are very low maintenance. The main task is to occasionally check and clean the inlet and overflow to prevent blockages from leaves and debris. It is also good practice to inspect the inside of the tank every few years for any sediment buildup and clean it out if necessary.

Customer Reviews

Based on 2 reviews
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B
Ben Smith
1000L Tank

Great service as always from the team at Big Water Tanks.
Quality products at affordable pricing

Y
Yokota Keiko
Quick Delivery

Hi

I have received the tank.

Thanks for your quick delivery and your driver was awesome!

Keiko