Installation Guide for Above Ground Water Tanks

Key Steps for Installing Above Ground Water Tanks

Installing an above ground water tank can significantly enhance your ability to collect and store rainwater, but to ensure optimal performance, proper installation is key. Here is a step-by-step guide to installing an above ground water tank in Auckland or elsewhere in New Zealand.

Step 1: Choose the Right Tank Location

The first step in the installation process is selecting the right location for your water tank. The best place is usually near a downpipe to ensure that rainwater can easily flow from your roof into the tank. It’s also important to place the tank on level ground, as an uneven surface could cause the tank to shift or become damaged over time. For slimline water tanks, space optimization is crucial, so placing them along a wall or fence often works best.

Step 2: Prepare the Base

Once you’ve chosen the location, you need to prepare a strong, flat base for your tank. Most homeowners in Auckland opt for a concrete base, which should be at least 100 mm thick with reinforced mesh to ensure durability. Alternatively, paving slabs set on compacted gravel and sand are another option. Having a stable base is critical because water tanks can become extremely heavy when filled with water, especially larger tanks holding 3,000 liters or more.

Step 3: Connect the Tank to Your Guttering System

The next step is to connect your tank to your home’s guttering system. This connection is made using downpipes that channel rainwater from your roof into the tank. To improve the efficiency of rainwater collection, you can install a first-flush diverter, which helps to remove the initial flow of dirty water that may contain debris. Ensure that all pipe connections are sealed properly to avoid leaks.

Step 4: Set Up Overflow and Drainage

It’s crucial to install an overflow system to prevent your tank from flooding during heavy rain. Most water tanks come with an overflow outlet that can be directed into your drainage system or a stormwater drain. This ensures excess water is safely managed, preventing damage to your tank or property.

Step 5: Add a Water Pump (Optional)

While water from your tank can be accessed via gravity, many homeowners in Auckland choose to install a pump for easier water distribution. A pump allows you to use collected rainwater for garden irrigation, washing cars, and even flushing toilets. Some pumps are solar-powered, making them an eco-friendly addition to your rainwater harvesting system.

Preparing Your Site for Water Tank Installation

Before beginning the installation process, it’s essential to prepare your site. Clear the area of any debris, vegetation, or uneven ground. If you’re using a slimline water tank, make sure that the wall or fence it’s placed against is stable and able to support the weight of a full tank if you plan on using wall restraints.

Additionally, Auckland homeowners should check local council requirements. While most above ground water tanks don’t require a permit, certain restrictions may apply based on the size of the tank and its proximity to boundaries. It’s best to consult your local regulations to avoid any complications.

DIY vs. Professional Installation in Auckland

Many above ground water tanks can be installed as a DIY project if you have basic handyman skills, especially slimline water tanks designed for easy setup. However, if you’re connecting the tank to your home’s plumbing system for potable use or if your site has complicated topography, it’s wise to hire a professional.

Professional installers will ensure the tank is properly set up, connected to your roof’s guttering system, and compliant with Auckland’s regulations. They’ll also handle more complex installations, such as integrating the tank with your home’s plumbing or installing a pump system.