Rand Water on Thursday denied reports of water restrictions in Gauteng following water shortages during the week.

"They got it wrong. It's not water restrictions," Rand Water spokesperson Justice Mohale said.

"We are assessing the situation. For those areas that have enough water, we want to redirect some of it to areas that do not have water. We want to build water levels to help those struggling areas."

High-lying areas, such as Bedfordview and Primrose, still had water shortages because there was not enough pressure to push water there. As water levels increase, there would be enough pressure to pump water to those areas.

"There must be enough pressure to push water to certain areas, so high-lying areas is a problem."

He said the diversion of water could take some time.

"It may take a short time to fill those reservoirs, it may take hours."

Earlier, authorities said water had been restored to most of Johannesburg and Ekurhuleni.

Only two suburbs in Johannesburg -- South Hills and Rabie Ridge -- and two in Ekurhuleni -- Bedfordview and Primrose -- were still without water.

"There has been a very big improvement," Ekurhuleni city spokesperson Themba Gadebe.

"In Bedfordview and Primrose there is still a shortage of water because they are high-lying areas. We are struggling with them. But in all other areas water has been restored."

Earlier, Gadebe also spoke of the redirecting of water to help with the problem. He said water had been diverted from two other reservoir systems, but he could not say when water supply would be back to normal.

In a statement, he said water had been restored to the other seven affected Ekurhuleni areas.

"The situation has returned to normality in Benoni, Brakpan, Kempton Park, Germiston, Daveyton, Etwatwa, and Tsakane.

"We are confident that the situation will continue to improve. In the interim, we will continue to supply the affected areas with water tankers until the situation has normalised."

Johannesburg Water spokesperson Millicent Kabwe said South Hills and Rabie Ridge were still without water.

"In all other areas water has been restored. Every day and every hour the situation improves. I can't say when they will get water. I can't give an exact date and time."