The utility said there are a number of factors that contribute to the rise and fall of dam levels.

“The first rainfall soaks into the ground and fills depressions like farm dams before it runs off to our rivers and dams.

In order for there to be an increase in dam levels, there would have to be continuous rain over a period of time”, read a statement from the utility.

Rand Water said the recent rain will not cause immediate change to Vaal Dam levels as the water does not flow into it directly.

“None of the water we have had in Gauteng goes to the Vaal dam so there will be no immediate effect.

The water either flows towards the Crocodile and Jukskei Rivers or it joins the Vaal River downstream of the Vaal Dam to go towards Bloemhof Dam”, said Rand Water.

Residents are being urged to continue to use water sparingly.

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Why is Vaal Dam not filling up after the rain?
There are a number of factors that influence the rise and fall of dam levels, such as where it rained, how much it rained and the level of run-off that occurs. Read on to get answers to your questions! [LE]