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Based on the Local Authorities (Compulsory Desludging of Septic Tanks) By-Law, 1998 septic tank shall be desludged as follows:
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CATEGORY
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FREQUENCY
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Residential
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Once in 4 years
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Commercial
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Once in 2 years
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Government Buildings, Schools, Premises used for Religious Purposes
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Once a year
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Hostels, Lodging Houses and Industrial Properties
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Once in 6 months
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The by-products are liquid (Standard A effluent) and solid (sludge cake).
Combined sewer is a sewer that carrying both storm water and wastewater together.
Private sewage treatment plant is a plant that is privately owned and operated by owner of the properties.
Private sewer is a sewer located within the house boundary area.
Public sewage treatment plant is a plant that is maintained and operated by Government.
Public sewer is a sewer located outside the house boundary area and maintained by Government.
Separate sewer is a sewer which is restricted to sewage only. Storm water and surfaces water are not admitted.
Blackwater is wastewater containing fecal matter and urine.
Greywater is wastewater generated from our kitchens, bathrooms and wash areas.
Septic sludge treatment plant is a facility that treats sludge collected from septic tanks.
Sewage is liquid waste carried off in a sewer or drains.
Sewer is a pipe or conduit for carrying sewage and other liquid wastes.
To maintain the treatment efficiency of your septic tank.
