Water tank for house: A guide to buying the best water tank in India (overhead and underground)

[] In this article, we give you all the information on selecting the best overhead water tank and underground water tank and how to place it, according to Vastu Shastra

Safe drinking water is a basic need and continuous water supply is needed for day-to-day activities. Often, municipalities do not supply adequate water throughout the day. So, home owners prefer to invest in a water tank for their house, to get water supply at all times.

You are reading: Water tank for house: A guide to buying the best water tank in India (overhead and underground)

Water tank for home

Water tank for house: Purpose

A water storage tank collects water and stores it for later use and access. Residential water tanks and overhead water tanks have become important, as they are convenient for people to access the water supply 24×7. Water tanks are also used as catchment tanks for rainwater.

Water tank for house

In India, water tanks are made from plastic, concrete, metal, fiberglass, steel and other materials. Nowadays, the plastic polyethylene (poly) water tank is the most popular for water storage, as it is lightweight, non-corrosive and leak-proof. If by any chance the plastic tank does have slight damage, it can easily be secured with a sealant. The water tanks can last up to 10 years or more, depending on the material used to manufacture them.

Vastu Shastra for water tank

Which water tank is best for home?

Water tanks are available in a wide range of materials such as plastic, concrete, stainless steel and fiberglass. Also, there are overhead tanks and underground water tanks that are used for storing rainwater harvesting and municipal water. Before choosing a house water tank, it is essential to keep certain Vastu principles in mind, as discussed in this article.

How to choose the best water tank in India?

Many things have to be considered when buying a water storage tank for the home. Always take into account the capacity of the tank, material used, shape, and also the colour.

Water tanks for home: Capacity

Best water tanks in India

One has to consider the water tank capacity for home before buying one. For a small family, a 500 to 600-litre water storage tank is enough and for a big family (depending on the size of the family) opt for a 700 to 1,000-litre tank. One also gets small water tanks that have a capacity, for homes, ranging between 100 and 300 litres.

Water storage tanks: Shape

Water storage tanks

Water storage tanks for homes come in different shapes. The choice should ideally be based on the amount of space where the tank is supposed to be placed. Vertical water tanks are better for groundwater storage purposes, while horizontal tanks are ideal for underground storage purposes. For household purposes, a vertical tank would be ideal, as rectangular and square tanks can fit in the corners and make best use of space. For large areas, cylindrical tanks are the best.

The circular shape of the plastic water storage tank aids in uniform stress distribution along the wall of the tank. The water pressure is dissipated evenly on the inner walls of the water tank and thus, it will have a longer shelf life. The circular shape also provides protection on the external surface, against windy weather.

Water tank for home: Colours

Water tank for home

Water storage tank for house

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Storage tanks are available in various colours such as black, white, green beige, etc. Black and green tanks are preferred, as they prevent ultraviolet rays and the growth of harmful bacteria.

Water tank for home: Material and durability

Water tank for house

A water tank’s durability is an important factor, as it needs to be sturdy and strong to endure temperature changes. In some areas, one may also need water tank for home that offer protection against nuisance by animals.

Water tank for house

Always choose the high-quality low linear density polyethylene (LLDPE) material and food-grade plastic material. These are safe to use and are durable. The water tank lid is important, for preventing dust and other pollutants from contaminating the water.

Poly or plastic tanks are made from UV-treated, food-safe, and non-biodegradable plastic. Depending on the quality of the materials used, they can last 10 years to 20 years before the plastic becomes unstable.

Plastic water storage tanks for homes are available with many layers. These multiple layers protect the tanks from the ultraviolet rays of the sun. The extra layers include the black middle layer and food-grade layers that make it safe for drinking water usage. So, opt for triple-layer tanks.

Always select water tank for house from a well-known brand and one that has a warranty.

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Water tank for house price

Water storage tank capacity (in Liters) Water tank price
Water tank 100 Ltr price Starting from Rs 1,200 (approximately)
Water tank 500 Ltr price Starting from Rs 3,000 (approximately)
Water tank 700 Ltr price Starting from Rs 4,500 (approximately)
Water tank 1000 Ltr price Starting from Rs 6,500 (approximately)
Water tank 1500 Ltr price Starting from Rs 9,500 (approximately)

The water tank depends on the storage capacity, layers of the plastic used, brand, state, dealer, etc.

Plastic water tank for home

Plastic water tank for home


One of the best water tanks are plastic water tanks in India that come in various capacities and types – underground or overhead type. Plastic water tanks are available in various sizes such as 500-litre, 1,000-litre, 5,000-litre and it can even go above 1,00,000 liters. They usually come in cylindrical, square, rectangular and circular shapes.

Best water tank brands in India

Some of the best water tank brands in India are Sintex water tank, RC Plasto, Storewel, Aquatech, Supreme, Penguin, Vectus, Sheetal, Jindal, Sarita, Kaveri, Lotus, Easy tanks, Neropure, Selzer and others.

Underground water tanks

Underground water tank

Elevated water storage tanks are fitted underground and are ideal for storing water from rainwater harvesting and municipal water. The size of the underground water tank is usually larger than the overhead tank. Overhead water tank for home are built for direct distribution by gravity flow and are usually of smaller capacity.

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Overhead water tank for home

Overhead water tank for home


Among the other types of water tanks for homes include overhead tanks. They are placed over the rooftop of any house or apartment. These are popular due to its cost-effectiveness and easy installation. Water storage tanks above ground can be easily checked for leakage through visual inspection and are usually easier to access if repairs are required. With the best overhead water tanks, one can have to access the water even without electricity. Once the tank is filled, the gravitational force maintains the necessary water pressure through the water system.

Placement and positioning of water tank according to Vastu

Water is one of the five elements mentioned in Vastu Shastra, which plays an important role and if its placement is not correct in the house, then, it can create problems and obstacles for the occupants. Vastu Shastra has specific directions mentioned for placing the water tanks for home for positive impact and good fortune.

Vastu for overhead tank

Vastu for overhead tank

The ideal direction for the overhead water tanks for home is in the south-west or the west corner of the house. If those areas are not feasible, then, place the tank in the south or the north-west direction. Ensure that the tank placed in the north-west is of a small size.

According to Vastu, the overhead water tank must never be kept in the north-east corner. Placing the tank in the south-east corner or the center is also not advisable, as it can result in financial loss and cause accidents. Never place the overhead tank in the middle or center of the roof that is the Brahmasthan, as it attracts misfortune.

An overhead tank should not have any leakage towards the left. In case there is any leakage, it is considered inauspicious as it can cause financial loss.

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Vastu for underground tank

Underground water tanks for home can be either towards the north or east. If the position of the tank is towards the north-east direction of the plot, it results in happiness, wealth and prosperity. According to Vastu, an underground water tank in the east can enhance one’s social sphere and helps in careers related to client relations.

Underground water tanks should not be placed in the south direction, as it may causes mental stress and illness. The south-east direction of the house is for the fire element and there should be no water tank in that area. Similarly, the north-west and south-west directions are not recommended for underground water as it leads to illness and misfortune.

Vastu dos and dont’s for water tanks at home

Vastu for water tank for house

  • Avoid a water tank above the kitchen or bedroom. Doing so can lead to unnecessary problems related to health and finances.
  • There should be different tanks for different purposes. While drinking and cooking water can be from one tank, water for toilets and bathrooms can come from another one. Avoid using the same outlet pipes for the kitchen and bathroom.
  • As per Vastu, avoid digging an underground water tank on Tuesday.
  • Ensure that the water tank is cleaned regularly and there is no dampness, or leakage, so that no negative energy builds near the tank. Always keep the water pipes clean and they should never be choked.
  • As per Vastu, place the overhead tank minimum of two feet above the slab of the terrace. The weight of the overhead tank with water on the terrace level will create stress and a burden on the home owner, if it rests on the terrace floor level.

Vastu dosha remedy for water tank at home

In many homes, water tanks are installed overhead in the puja room, in the northeast corner. According to Vastu, the overhead water tank must never be kept in the northeast corner. The northwest corner is the right location for it. The color of tank as per Vastu, can be painted in shades of red, to lessen the Vastu flaw. For a water tank Vastu dosha, always take expert advice. Also if the tank position is not as per Vastu, it is best is to change the position.

Tips for maintenance and cleaning of plastic water tank

Water tank for house

  • Ensure that the storage water tank for house is properly closed, to avoid any impurities or waste from entering. Regularly check for leakage of pipes and get them repaired immediately.
  • The purity of the water is also impacted by where it is stored. Whether it is a home building or a housing complex, the house water tank should be cleaned and disinfected at least twice a year to avoid water contamination and to maintain health and hygiene.
  • To clean the tank fully, drain the stored water. Try to use it for some chores, rather than just wasting it.
  • Scrub the tank, to remove dirt and sediments. One can either use chlorine or liquid detergents to get rid of deposits and germs. After cleaning the tank, always ensure that the tap is left running for some time, to wash away the dirty water.
  • If one is unable to clean the tank oneself, it is better to hire professionals who will do high-pressure cleaning, such as vacuum cleaning, anti-bacterial spray, etc. and ensure it is thoroughly clean.

Water tank for house


What is the price of 100 litre water tank?

The price of a 100-litre water tank starts at approximately Rs 1,200.

How do you calculate litres of water in a tank?

Each cubic ft of volume is equal to 28 litres.

Which water tank is best for storing drinking water?

Drinking water can be stored in plastic tanks made of food-grade polyethylene and those with ultraviolet filters. A toxin-free plastic material makes drinking water storage tanks safe. A plastic water storage tank with layers protects the tank from the effects of climatic changes. Usually, cities have treated water and most households have reverse osmosis (RO) purifiers but still buy a storage tank that can safely store drinking water. Also, ensure an airtight lid to keep dirt and mosquitoes out of the tank.

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Category: Rent

Debora Berti

Università degli Studi di Firenze, IT

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