Hotel 135 lit. Overhead Restaurant need 7 liter.
(a) Overhead storage tanks are needed to build pressure of water
If the pressure of water is not sufficient, water is first stored at the ground tank from where it is pumped to the top storage tank.
Storage tank can be filled directly by means of pump also
A storage tank can be made of –
1) Mild steel plates, Aluminum plates
2) Reinforced cement concrete
Masonry/Concrete Storage Tanks –
Tanks constructed out of reinforced cement concrete, Ferro-cement bricks stones or concrete blocks are common as they can be constructed in any shape and size to fit the site requirements. The tanks have to be made water-tight by adding a water proofing compound added to the concrete and plaster mix. All inlets outlets, etc. must be inserted at the time of construction.
Any other plastic material, etc.
A storage tank consists of –
A water proofing compound added to the concrete and plaster mix. All inlets, outlets, etc. must be inserted at the time of construction.
(i) Top Cover:
Tight fitting so that mosquitoes do not inter. It may have locking arrangement.
(ii) Ball valve with float:
It is provided near the inlet to the tank so as to control the inflow of water. When the water level falls down, the float moves down thus opening the inlet valve. When the level in the tank reaches the desired full supply level, float rises up thus closing the inlet valve.
(iii) Over flow pipe:
Which is set about 2.5cm above FSL in case the float?
(iv) Inlet pipe:
Which is set about 2.5cm above FSL in case the float assembly fails.
(v) Outlet pipe with valve:
Set about 2.5 to 5cm above the bottom of the tank.
(vi) Drain pipe or scour pipe.
For cleaning the tank periodically.