Calculations for Overhead Water tank | Building Construction



Design of Overhead Water Tank | Design of RCC Structures

As per NBC (National Building Code, 2005) standards,

Water required per person per day = 150 litres

Drinking water = 4litres per person per day

Calculation for an overhead water tank for a 3 BHK Villa:

Let us assume the average family size = 5 persons in the house

Water required for daily chores per person per day as per NBC norms;

150 x 5 = 750 litres

Drinking water required:

4 x 5 = 20 litres

Total quantity of water required = 750+20 = 770 litres

Volume of water = 770/1000 = 0.77 cubic metres

Dimensions for the overhead water tank:

Length = 1.2m

Breadth = 0.6m

Depth = 1.1m

Total Volume = 1.2×0.6×1.1 = 0.792 cubic metres



28 thoughts on “Calculations for Overhead Water tank | Building Construction”

  1. Building an overhead water tank does need a lot of calculation and many things to be thought about to give rise to an efficient construction. It would be better to give a platform built of steel and the required support from the base would do the work but then too there are certain factors that would vary with respect to place and a professional would be the best to guide here.

  2. Can a hole be drilled in adjacent concrete water tanks for water balancing? Size of the two tanks are 3000 m3 and 6000m3. Surface area of the common separating wall is 2 meter wide and 3 meter deep.

  3. Hi,

    We have 21 flats in a building and we all want to set water tank 500 lit/each because of water issue. Our terrace area is 5000 sq feet. Is it OK if we fit water tank on terrace. Can it be problem to building structure in future

  4. hi i have to put one 5kl water tank at a height of 12mtrs for my factory in hyderabad . what will be cost of the structure in mild steel and the cost in rcc structure.pl provide me design of it.

  5. Rather, focus y᧐ur timе and effort and
    energies upon training harder ɑnd sleeping mߋre. Now there needs to
    be a communication system between both ߋf tһese when they Ԁ᧐ ɑctually speak witһ eaϲh other right.

    Uterine prolapse іs a concern rеlated оn the support structures ᧐f
    thе pelvic floor, tһɑt tend to Ƅe commonly afflicted
    ԝith genetic factors аnd childbirth trauma.

    • Yes, can be done. You can go for a tank size (internal dimensions) of 3′ x 5′, and a height of 4′. It would give you a capacity of 1500 liters. Use 9″ thick walls. Don’t forget waterproofing.

Leave a Comment