Raising Main – It is a supply pipe line that rises from ground level to the storage tank on the roof top. Since the supply pressure is not enough, there are intermediate booster pumps to enable the water to reach the top storage tanks. Some times intermediate storage and multiple tanks are used for serving a group of intermediate floors. The water is stored in the storage tank through the raising main, the storage tank is located at the highest point in the building to ensure a reasonable pressure in the distribution pipes .
Discharge or Service Piping – Water for drinking, kitchen and wash basins etc. is directly taken from the rising main by branch pipe at different floors and flows into the service taps. The stop valves should be fitted immediately after the exit from the tanks for disconnecting the pipeline distribution system in case of leakage in tank or pipe system.
Valves – are generally gate valves used to completely open or close the water lines .
Storage Tanks
SWIMMING POOL MAINTENANCE
To keep the pool water transparent, sparkling and free from dirt, filtered water must be used.
After a specified period of time, usually as recommended by a local public health authority, entire water content should be cycled through the filter.
To ensure proper functioning, the filtration equipment must be cleaned periodically according to o a maintenance schedule.
The process of cleaning the filters is known as backwashing.
Different types of nets are used to remove floating objects and also large objects that are settled at the bottom of the pool.
In some pools, the pool water is continuously kept in motion where it passes through the filter and all unwanted floating objects are trapped in the filter.
The swimming pool has an opening at the water surface level, leading to the drain at the outside. This opening is called WEIR and a strainer is placed at this opening which arrests the objects floating in the water, which is subsequently removed.
Chemicals are added to the pool water to maintain the proper hygienic conditions.
Disinfectants are added to make the water bacteria-free.
The dosing can be done manually or may be automated.
To maintain the correct pH level appropriate chemicals are added.
The pH is normally maintained between 7.2 to 7.6.
Algae which are water plants that grow in water, are also very difficult to eliminate. If their growth is not hampered by disinfectants, they are to be manually removed.
The initial, as well as the, make up water is supplied to the pool by the water treatment plant in the hotel.
