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.
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.
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.
Plastic water tanks
Plastic water tanks in India 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 and rectangular shapes.
Some of the 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.
Water tank price
The water tank depends on the storage capacity, layers of the plastic used, brand, state, dealer, etc.
- 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).
Underground water tanks
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.
See also: A guide to water conservation methods
Overhead water tanks
Overhead tanks 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 overhead 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 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 for the occupants. Vastu Shastra has specific directions mentioned for placing the water tanks.
Vastu for overhead tank
The ideal direction for the overhead water tank 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.
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.
See also: Important kitchen Vastu Shastra tips
Vastu for underground tank
Underground water tanks 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.
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.
Avoid a water tank above the kitchen or bedroom. There should be different tanks for different purposes. As per Vastu, avoid digging an underground water tank on Tuesday.
How to select plastic water tank
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 tanks that have a capacity of between 100 and 300 litres.
Water storage tanks come in different shapes. 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.
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.
Always choose the high-quality low linear density polyethylene (LLDPE) material and food-grade plastic material. These are safe to use and are durable.
Plastic water storage tanks 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 a well-known brand and one that has a warranty.
See also: A quick guide on using water meters
Tips for maintenance and cleaning of plastic water tank
- Ensure that the storage water tank 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 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.
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.