Keeping and storing water inside the tanks also brings challenges in addition to all the advantages it has. Since these supplies are installed on the roofs or indoors most of the time, there is a possibility of heating the water inside these tanks, especially in the hot seasons of the year. In general, if the polyethylene tanks, which are used to store water, are of three-layer or four-layer type, then they will prevent the sunlight from entering the tanks because of having a middle layer resistant to UV ray. Being resistant to the entry of light on the one hand and preventing the algae growth in the tanks on the other hand are the factors that prevent the heating of the water inside the tanks but it is inevitable to heat the water inside the tanks even by using the three-layer or four-layer tanks in some areas due to the special weather conditions prevailing in that area. The water heating makes it unusable. Consequently, people attempt to do activities to keep the tank and the water in it cool. We are going to instruct how to keep the water tank cool in the hot seasons by providing methods in this article.

 

Resistance of Polyethylene Tanks to Sunlight and Harmful UV Ray

Polyethylene tanks, which are one of the most widely used types of tanks, have a very high resistance to the sunlight. This resistance is due to the fact that if even a small light beam enters these tanks, the conditions for algae growth will be provided in the polyethylene tanks. Algae growth in the reservoirs makes them and drinking water in them unusable. Since the three-layer and four-layer polyethylene tanks are resistant to sunlight, their heating occurs less often. However, many people prefer to avoid the water’s becoming hot and unusable in the tank and use methods to keep the tank cool. Of course, you should pay enough attention to the fact that the single-layer polyethylene tanks do not have an anti-UV layer, and it is easier for the water to heat in them and even for the algae to grow in the tanks.

Why Should we Try to Keep the Water Tank Cool?

If you use the water tanks for daily consumption and not only for storing water, you must take actions to keep your tank cool. Obviously, hot water is not suitable for drinking at all. Besides creating evaporation conditions, water heating also causes damage to the tanks’ body.

Solutions to Keep the Water Tank Cool

As mentioned, for many people, the question is how to keep the water tank cool in the hot seasons of the year? There are ways to prevent heating and keep the water tank cool, which include:

Tank Painting

Insulation of joints (fittings) and pipes

Water movement inside the tank

Tanks’ installation in dark environments away from direct light

Tank fullness

Using a shader or a special room

Use of insulation

We will describe the implementation of these ways in the following.

Tank Painting

One of the methods that can prevent the heating of the polyethylene tank and the water inside it is to paint the tank. Tanks are usually painted using white paint. The reason for this is that white color has the highest amount of heat and light reflection compared to other colors. Of course, the color of polyethylene water tanks is usually white, which is considered one of the advantages and features of polyethylene tanks, and as we mentioned, using this color causes very little heat and light to be absorbed to the supply.

Insulation of Fittings and Pipes

Fittings and side pipes of water tanks are one of the reasons for the heating of water inside the tanks. If these fittings do not enjoy proper insulation, then they can cause the water running inside them to heat up. This has caused the heated water to transfer into the tanks.

 

Water Movement in the Tank

One of the ways to keep the water tank cool is the water movement inside the tank. The possibility of the water heating is greatly reduced if it circulates. Of course, you should note that this will cause the costs to increase.

Tank Installation in Dark and Away-From-Sunlight Environments

The main reason for the heating of polyethylene water tanks is the sunlight shining on them. Tank installation in a dark place where there is no sunlight is one of the ways to prevent the polyethylene tank and the water inside from heating up. Many people, who use single-layer tanks, take this approach, but our recommendation is to use three-layer, four-layer, and four-layer foam tanks.

Tank Fullness

The water tank fullness causes the space filled with air to decrease and consequently, the heating of the water inside the tank is prevented. The reason for this is that when hot air enters the tank, the flow of hot air is transferred into the water molecules, and consequently, the water in the tank heats up. The fullness of the tank prevents air from entering the tank and as a result, the water in the tank does not heat up. So, in answer to the question, how to keep the water tank cool in the hot seasons of the year? It can be mentioned that the tanks’ fullness is one of the ways to keep them cool.

Using a Shader or a Special Chamber

As mentioned, preventing direct sunlight from hitting the tank is one of the ways to keep the tank cool. If the water tank is installed on the roof, you can use a shader or build a special chamber to prevent the tank and the water inside from heating up. Of course, the construction of the chamber and shader requires considerable time and money.

Using the Insulation

Using metal insulations or glass wool to insulate polyethylene water tanks is one of the most effective ways to keep the tank and the water inside cool. One of the advantages of this method is to help maintain the water temperature in the cold and hot seasons of the year. Using an insulation for tanks makes the water in the tank not freeze and maintain its temperature even in cold seasons. The tanks insulation is conducted in different ways, two of which are:

Insulation by Lime Mortar and Water-Soluble Glue

Insulation Using Foil Insulation

If algae have grown in your tank and you are looking for a solution to prevent and remove it, then you can read the article on “What are the Solutions to Prevent and Remove the Algae in the Tank?”

Final Word

As mentioned, one of the concerns of the people, who use polyethylene tanks and water tanks in general, is how to keep the water tank cool in the hot seasons of the year? In response to this question, we stated that there are various ways to prevent heating of tanks and the water inside them, which include:

Tank painting

Insulation of fittings and pipes

Water movement inside the tank

Tanks installation in dark environments away from direct light

Tank fullness

Using a shader or a special chamber

Using the insulation

We also addressed the issue that the tanks heating makes the water in these tanks unusable and can no longer be used.

Tabarestan Plastic Complex, the largest producer of polyethylene tanks

Tabarestan Plastic Complex is one of the top and largest producers of polyethylene tanks in Iran and the Middle East. By producing high-quality tanks, the complex has managed to capture a significant part of the market. Polyethylene tanks are produced and supplied in single-layer, three-layer, four-layer, and four-layer foam types and various designs such as: Nissan tank, under-stair tank, vertical tank, horizontal tank, etc. in Tabarestan Plastic Complex. You can contact the sales experts of the complex to buy polyethylene tanks of Tabarestan Plastic Complex. Please refer to the page of Products and Price of Under-Stair Tank to take an inquiry on the price of under-stair tank.