Several factors determine the ideal under deck water tank for any property. Nonetheless, many people need help picking the right size and capacity. Here are some steps to help you make the right choice:

Determine your household water needs
Water tanks are installed to ensure your household water needs are met. Therefore, estimating how much water you use is important to determine the ideal tank. If you have an estimate of the daily consumption, you can also choose the tank's capacity based on how long you wish a full tank to last. Moreover, this information is important for designing the best water-holding system to compensate for an unsteady council supply.

Consider the size of your roof
Many under deck water tanks source their input from rainwater harvesting systems. Therefore, how much you collect determines the size of your tank. You can measure the area of your roof and multiply it by the average rainfall to get a good estimate of how much water you can collect. For example, if you have an expansive roof and regular rainfall, you will need a large tank to meet your harvesting potential.

Decide on the tank location
Your deck's size and shape will determine the dimensions of the tank that you can install. Therefore, getting accurate measurements is imperative before buying a tank or starting construction. Furthermore, you should consult installation companies for clear excavation guidance and sound advice on licensing.

Determine the tank capacity
Tanks come in various sizes, from small ones with a few hundred litres to large ones with a capacity of thousands of litres. Prefabricated units, in particular, have specific size categories. Therefore, users are confined to what's available. Nonetheless, you can combine several tanks to meet your requirements.

Concrete tanks are the most versatile tanks. They can be built to any shape or size. These tanks are ideal for large-capacity water storage in locations with limited space.

Choose a reputable supplier
Choose a reputable supplier who can provide you with sound advice and quality products. Good suppliers can also analyse your needs and customise the best solutions. Therefore, get them involved early to avoid mistakes.

Think about the purpose of the water
It's important to determine the final application for your stored water before working on the under deck water tank installation. What you do with the water determines how you will store it. For example, water for irrigation requires a simple tank with no additional filtration system. However, drinking water may need treatment and filtration units along the distribution line.

Consider the material of the tank
Under deck water tanks are typically made of plastic or steel. Plastic tanks are generally less expensive and lighter, but steel tanks are more durable and withstand extreme weather conditions. Concrete is also an option, however it's more expensive and labour-intensive.

Look for additional features
Some tanks have additional features like overflow protection, insect-proof screens, and UV-resistant coatings. These features can help you get more value from your investment and ensure the tank's longevity.

Check local regulations
Check with your local authorities to see if there are any regulations regarding installing under deck water tanks. Some areas may require permits or have restrictions on tank size and capacity.

By considering all the factors above, you can choose the right tank for under deck storage and ensure that it meets your specific needs.