when we want to find out that how much water is required for the city, village, hospital, house, town, etc. So, first of all, we have to find their water requirements what how much after they are using per capita per day. After that, we are able to find the population of the city or village, etc. then it’s easy to find the total volume of water for them. when we complete this survey then we have to find out the volume of the water tank for those water which is required for the village or city peoples. then we add the factor of safety in that water because F.O.S can give us a lot of benefits.  let us start:

Here we have a small family and we have to find the volume of water required for a house. So we have total no’s of the population in this house just 12 nos. Now we have to find the volume of water and volume of water tank for the 12 members of the family.


When You want to Design a Water Tank for a Small Family or School,  House, College, and Industries, etc.

So, First Of All, we have to Find Out the average of water per/day/capita.

Let to Start Start the Example that how to Design the Water Tank for a Small family.

First Of all to find out the volume of water Requirement for One person/day.

So 135 liters Of water is the average of water for one person/day

Details :

1: Drinking  =  5 liters

2: Cooking =  5 liters

3: Bathing and Toilet =  85 liters

4: House Cleaning  = 10 liters

5:  Cloth washing  = 30 liters

So Total water is required for one person/day  =  135 liters.

So now we Design a Water Tank for 12 members family :

Total Water Required for one person per day  = 135 liters of water.

We have 12 members family

Solution :

Total Water Requirement for 12 members per day  =  12 x 135  = 1620 liters/day

We Know That:-

Density of Water  = 1000 liters/Cu.m 

Now:    1 cum  = 1000 liters

1 liter   = 1/1000

So  1 liter  = 0.001 cum

Our Water Requirement is 1620 liters

So    1620 x 0.001 cum

The volume of Water  = 1.62 cum

Now Assume Height of Water Tank  =  say 1.5 m

Now Find The area of Water Tank = 1.62/1,5  = 1.08 sq.m

Now we have to find out the length and width of the water tank

so Take under Root on the Water tank Area

√1.08   = 1.0398 m

So Now

Height of Water Tank =  1.5 m

Length of water Tank  = 1.0398 m

Width of water Tank   = 1.0398 m


when You want to design a water Tank so Water tank design depends on the population and also that how much water they are using depending on the person’s nature. And after that, we have to find out the volume of water average, and then we are able to Design the water tank after the Given Data. The above water Tank Design of Water is just for one day it means this water tank just works for one day for 12 members family.

For More Information Watch This Video

Click Here To See Materials Estimation for Circular RCC Water Tank

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