Ugu District Municipality is calling on all South Coast residents to help keep sewer systems clean and free from fats, oil, grease (FOG) and debris.
According to Ugu, blockages can reduce capacity in the sewer lines and result in sewer spills onto streets and private property.
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This follows the flood of complaints to Ugu regarding blocked manholes caused mostly by the disposal of FOG into the Ugu sewer system.
Ugu spokesman France Zama said when the combination of fats, oils and grease used in food processing and in the preparation of meals is discharged down the drains and into the sewer system, it cools and solidifies clogging the wastewater flow.
Households, commercial and industrial premises are responsible for such blockages.
Mr Zama said FOG from both from households and food outlets are entering the sewer system in liquid form, but when it comes in contact with the cold pipes underground, the fats/grease hardens on the walls of the sewer lines.
“A popular myth is that running hot water down the drain will prevent this from occurring, however, this is not true, as the ground surrounding the pipes keeps it cool, thereby allowing the fat to adhere to the walls of the pipes. Over a period of time, the fat will harden in the pipes, eventually causing the pipe to become completely blocked, or resulting in fat deposits causing blockages.”
Mr Zama said the recurrence of these blockages pose a major health risk as sewage enters recreational waters which ultimately results in the closure of beaches and lagoons for water sports.
“The blockages also give off unpleasant odours and the risk of pest infestation is high. The public can play a pivotal role in minimising blockages if FOG is correctly managed and disposed of.”
Ugu urges residents to play their part in minimising FOG in sewer lines by adhering to the following guidelines:
- Avoid pouring liquid fats, oils or grease into sinks and floor drains.
- Dishes, pots and pans coated with greasy leftovers should be wiped clean with a disposable towel prior to washing or placement in dishwashers;
- Instead of allowing fat trimmings or food pieces to enter the wastewater drainage system, use strainers in sink plug holes and dispose of any collected food debris in refuse bins;
- Consider fitting a fat/grease trap and ensure it is regularly maintained;
“Remember that even a small amount of FOG in a sink can cause sewage backups and overflows that are messy, costly and a potential risk to you and the environment,” Mr Zama said.
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