Water dam levels continue to drop

2017-02-01 06:03

THE current drought situation has resulted in the level of Albert falls Dam dropping to 26.1 percent as at 20 January.

A proactive decision was taken by the Department of Water and Sanitation­ to impose restrictions to the greater Umgeni River system by 15% which has not been achieved for domestic, industrial, commercial consumers and 50% for farming and irrigation with the effect from December 2015.

eThekwini Municipality had requested for the relaxation of the restrictions during the festive season to cater for the increased demand. This was due to an influx of holidaymakers to the City.

However, the demand exceeded the supply during this time, thereby causing a strain on the water network system.

The 15% curtailment was reinstated on Monday, 16 January.

The net effect resulted in Mt Moriah Reservoir running dry after feeding 16 reservoirs downstream of it.

This is a step-pumping system and this means that the first line reservoir has to reach a certain level of water before pumps can start pumping to the next one.

When this system is affected, not only does it affect the reservoirs, but also the reticulation as whatever supply that is received goes to the reticulation­ making building up storage to the reservoirs to take even longer.

Pinetown South, which includes, Tshelimnyama, KwaNdengezi, Dassenhoek­, Mpola and Savannah Park is at the end of this system and this implies that KwaNdengezi Reservoir will be the last reservoir to recover after all those before it. This is just how the system was designed and configured.

Depending on where consumers are in relation to their reservoir zone, whenever there are interruptions in the system, high level zones or those residing next to the reservoir will be the first to run out of water and those in the low level zone will be the last.

When water is restored the low level will get water first, the system will fill up and the high level will get water last.

The municipality warns people to refrain from using the sprinklers, the hosepipes, filling in their swimming pool, washing their vehicles with a hosepipe, etc, during this dire drought situation.

To view table explaining the different restrictions, go to www.durban. gov.za, or call customer care line: 080 13 13 013, WhatsApp Fault Report line: 073 148 3477, SMS: 43554, email: Eservices@durban.gov.za

- Supplied.

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