What is a water tower for?
Answer:
I also wish to add that it provides a way to maintain water pressure even when the electrical power is out. This is a great safety feature.
It maintains a constant high head of water capable of periodic large discharge volumes while being filled by pumping by a much lower pressure source at sustained low volume.
A water tower is used to boost and maintain water pressure using the force of gravity.
Water tower is simply a container at a greater height. Water is stored to meet demands during scarcity in some countries. Water form the ground is pumped and stored in the tanks. when needed it it discharged. The height helps build pressure that needs to overcomes the friction in the pipes that lead to the residential areas.
To maintain stable water pressure.
uncle al is 1/2 right.
it maintains a relatively constant pressure.
however, water pumped into the system must be pumped higher than the pressure at the top of the tower.
like many others, i suspect, for years i thought that's where the water came from.
until i realized that what it did was:
- maintain a consistent pressure, and
- allow for variations in demand.
During low water demand period, the mains water supply has a pressure sufficiently high to also maintain the head (height) of water in the tower. The head pressure is calculated to be equal to the normal mains supply pressure.
During high demand, the head of water maintains the pressure of the system near to the normal pressure level.
If the demand remains high for a long period, then the level in the tower tank will begin to fall.
Come night-time, when demand is at its lowest, the tower tank level is replenished and all is back to normal.
storing water
Oh so many answers wrong there. To fill a water tower tank you must have an inlet pressure higher than the water tower outlet pressure. Therefore a water tower cannot increase the water pressure at all, in fact it will decrease the water pressure. What it will do is to even out the supply and demand volumes and create a more or less constant delivery pressure. Strictly speaking as the level in the water tower tank falls, so does the delivery pressure but this is marginal. Your inlet pressure needs to overcome the height of the tower in order to fill the tank and your inlet volume must be enough to keep the tank full of water over time if you dont want periods of no delivery. You dont want water to be sitting in the tower for too long as most likely the treatment was upstream and you dont want the water to become stale if its for drinking. You can design the volume of your water tank as you wish but the basic function of the water tower is to provide a more or less constant delivery pressure at various delivery volumes when your input to the tank may not be sufficient volume capacity to meet peak volume demand.
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