Top Tips for Choosing the Best Rainwater Harvest Water Tank for Your Needs

The practice of harvesting rain is commonplace in many countries, such as Australia, India, and Europe. For centuries, those who depend on rain for their daily needs have used water tanks to collect the free water.

choosing a rain water tank

The next time rain clouds roll through your neighborhood, just think how much of that you could have saved with a rain harvest tank.

There are many rainwater harvest tanks from which to choose; however, Rain Harvest in the US is one of the most trusted names. There are a few things to research and understand before choosing the best rainwater harvest water tank.

  • Consider the average amount of rainfall that occurs in your area.
  • Understand the roof size in your water collection area.

Measure the roof size in order to calculate the amount of runoff, which is one millimeter of rain on one millimeter squared to deliver one liter of water into the tank. offers an approximate guide: three-bedroom house (150 millimeters squared), four-bedroom house (200 millimeters squared), and an average garage or carport is 25 millimeters squared.

  • Research the public health requirements in your neighborhood.
  • How much do you need?

Obviously, the more people in your house, the faster the water is used. If you are using the water tank to supplement your current water usage, determine how water will be divided.

how to choose a rain water tank

Collected rain can be used both inside and outside, including gardening and car washing. Keep your water bill low with your new rain harvest water tank.

Ideas for harvested water usage include toilet flushing, laundry, gardening, car washing, etc.

Based off how much rain falls and how much your roof will yield, now you can determine what size tank you need.

  • Choose your tank size

Generally, there are three size classes of water tanks. While the method with which water is collected and disseminated varies, water tanks come in small (less than 2,000 liters), medium (between 2,000 liters and 10,000 liters), and large (more than 10,000 liters).

Rainwater tanks are made with different types of materials, such as steel, fiberglass, concrete, PVC, or other materials. There are certain accessories that also need to be purchased when considering a water tank. Those include a tank stand, a leaf strainer, first-flush diverter, tap, pump, and downpipe connection.

Given the latest upswing of West Nile virus in the US, which is spread through mosquitoes, precautions must be taken to avoid breeding. Rain barrels should be emptied every week, as well as be covered by screens. Remember that if the tank is filled to the brim, these pests still can breed.

  • Check the business reputation.

 Before purchasing a water tank, research the company’s business reputation. It’s important to read consumer reviews of the business, as well as the products offered. Trust is paramount to making a right decision, and customer service is a close second. Most likely, you will have questions while setting up your harvest tank, and you need someone who is available and willing to help.

Don’t forget to review the return policy, as well, in case rain harvesting is not for you.

The decision to purchase a water tank is one that more people make every day. The untreated water is perfect for gardening and car washing, and the conservation slows run-off and helps the strained water supplies in many areas.

Source: Laura Burkey (Laura Burkey) writes for various blogs on topics ranging from conservation and nutrition to parenting and gardening).

Rainwater is also perfectly good for drinking purposes as long as it is appropriately filtered (to remove any contaminants that may have been on the roof or gutters).  In fact, rainwater is far healthier than most municipal water because it has not been laced with harmful chemicals such as chlorine.  In South Africa, JoJo Tanks is probably the most well known water  tank manufacturer and all their products carry a 5-year guarantee.  Click on the links below to view the wide range of jojo water tanks, jojo rainwater tanks, jojo tank stands and other high quality JoJo Tanks products.

JoJo Tanks South Africa offer a wide range of plastic water tanks and chemical tanks to suit every household, business or agricultural need, including silo tanks and silo tank stands.  See JoJo Tanks VERTICAL TANKS, HORIZONTAL TANKS (transporter tanks), STEEL TANK STANDS and OTHER JOJO PRODUCTS. Also see JoJo Tanks’ NEW 6000 LITRE UNDERGROUND TANKS. Also see our FAQ and WATER TANK PRICES.

JoJo’s superior polyethylene plastic water tanks and steel water tank stands make JoJo Tanks the leaders in plastic water tank technology and the quality, affordability and guarantee on these water tanks make JoJo products the best choice in South Africa.  JoJo’s water tanks and chemical tanks come standard with a number of features that are often lacking on cheaper/inferior plastic tanks made by other companies in South Africa.

We are authorised JoJo Tanks dealers in South Africa and dispatch orders directly from JoJo Tank depots to save on transport costs. Full range of JoJo Tanks products and JoJo water tanks for sale.  CONTACT US for a quote on the right JoJo water tank or other JoJo product for you.  Special discounts are available on multiple orders of chemical tanks and water tanks and to our commercial and government customers.


(15000 litre and 20000 litre JoJo vertical water tanks also available on order)

Live in the USA and need rainwater harvesting equipment?  Click HERE!

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