### HOW TO CALCULATE WATER TANK SIZE AND CAPACITY

HOW TO CALCULATE WATER TANK SIZE AND CAPACITY

In commercial building usually  the design data of water tank is provided by the design engineer. But most of the time we want to construct residential building. at the time water tank design is required.so the topic we are discussed about water tank design of residential building .

we consider 5 members in this family so the water tank is designed to for this data.

in India per capita  demand=135 liters/day/person
135 liters of water is required for one person per day

Total amount of water is required for 5 members= 5x135
=675 liters
Unit weight of water                                    =1000 liters/m3
Assume the depth of water tank               =0.6m
675 liters=0.675 m3
Volume of water tank                                  =0.675 m3
L X B X D     =volume (0.675 m3 )
L X B X 0.6          =0.675
LB            =0.675/0.6
LB            =1.125
We want any one dimension
So that L      =2 xB
2 B2         =1.125
B2             =1.125/2
B2             = 0.5625
B               =0.75 m
L                = 2B
=2 x 0.75
L                  = 1.5 m
Provide free board  =0.2m
RESULT

Size or water tank

Length=1.5m

Depth=0.8 m(0.6m+free board 0.2m)

ALSO READ-----INGREDIENTS OF CEMENTS AND ITS FUNCTIOS

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