A sump is an underground or a half submerged in the ground tank that is popular in our country, India. It is usually used for large water tank storage and is traditionally built with bricks or with rods and concrete, depending on the capacity. It is usually part of a rainwater harvesting system or used as the storage for ground water which is pumped out.

Please find below the advantages of building a Sump Tank: 

– Generally it is a cheaper method when compared to the above ground storage tanks

– Water cannot leak out through an open tap as the tap is present in the tank itself

– Does not affect the aesthetics of the building as it is under the ground and generally the ground above will be used as a driveway

– Best suited for storage of rain water or tanker water when the groundwater is dry

Please find below the disadvantages of building a Sump Tank: 

– Construction is time consuming and adds onto the time taken to complete the building

– Can affect or damage the main foundation of the building if constructed very close to the building or plinth beam

– Submerging a pump is required to take out the water

– Pretty close to impossible to find and fix cracks or leaks

– Cleaning is a problem as the water cannot be drained out easily

– If the tank or manhole is left uncovered, it can be a safety hazard as kids play and vehicles move around

– The tank can be damaged by tree roots if the construction quality is poor

– If not constructed properly, the pressure exerted by the Earth can also cause damage to the tank and it may cave in, this is why we at commlab properties built the sump with rods and concrete


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