When thinking about installing a rainwater tank in your home, farm, or business, a key consideration in addition to the type and size of the rainwater tank is where the tank should be installed. Planning your rainwater tank’s site and placement with care is a principal factor in ensuring that your tank functions as it should indefinitely.
Below are five items to consider when deciding where your rainwater tank should be placed.
- Usage Needed
The first thing to think about is how much water you want to store in the tank and what you’re using your rainwater tank for. There are many different domestic and commercial purposes a rainwater tank can fill including agriculture, home gardening, food preparation, drinking water, and fire fighting.
Your climate will be an important factor to consider when calculating your usage. If your target is to use 1,000 litres annually in rainwater harvesting but the collection system can only take in 200 litres each year in your climate, the difference will be hard to overcome without reworking your collection system.
- Tank Size
When the estimated usage and the water harvesting ability of your collection system line up, you’ll know what size rainwater tank you’ll need. A standard formula is that 1,000 litres needs one square metre of space. Using this space requirement formula, you can determine how much total area you will need for your tank to be installed successfully. Most likely, the size of the area will rule out several places you may have considered.
If you will be using your tank for agricultural purposes such as harvesting water with multiple 40,000 litre tanks, you’ll need a great deal more space. This type of endeavour will require more planning and preparation as well.
- Run-Off Considerations
When a water tank fills up, the excess drains out of an overflow pipe. This isn’t a large concern for smaller tanks but it can quickly become an issue for larger systems. Run-off can cause local flooding and erosion. Some solutions include:
- Swale System: Humps and ditches encourage soil absorption.
- Weir: With a swale system, the weir channels direct water to a storm drain
- More Tanks: If you can collect more water, do it.
- Check with the Local Council
Each local and state council will have its own requirements for residential and commercial water tank users. The best way to begin your search is to talk with a tank retailer and then contact your local council.
You can also talk to a professional rainwater tank installer. He or she will know the local requirements. Contact local retailers about the requirements of water tanks in Queensland to learn more.
- Site Preparation
Once you have chosen your site, you’ll want to prepare the area. Many water tanks are placed above ground while others are installed underneath the ground. In addition, your tank’s overflow for run-off, connection with the water collection system, and distribution system will need to be prepared.
To get the best results, contact a water tank installer in Perth to assist you.