The utility implemented stage 2 water restrictions last month after increased consumption and lack of rainfall left dam levels low.
The utility said it had decided to reduce water flow to about 40% in order to recover from high water usage.
The water utility implemented water cuts on Friday citing a shortage in capacity caused by high temperatures.
Water expert Professor Anthony Turton has warned that Gauteng is at risk of a water shortage if proactive measures are not put in place.
It says that the proposed increases would have the biggest impact on working class and poor people.
If water demand and temperatures rise without good rainfall, Johannesburg Water says it will have to enforce water-saving measures.
Forecasters say there will be some rain during the spring and summer seasons but that sufficient rain will only start falling from the end of next January.
The Water and Sanitation Department however says residents shouldn’t waste water as the country is still experiencing drought conditions.
The Water and Sanitation Department says the Vaal Dam is at 103.75% and says its officials are still monitoring levels.
The Water and Sanitation Department says the gazetting process over the lifting of water restrictions will take another week to finalise.
On Monday it was announced water restrictions would be lifted in Gauteng as a result of the Vaal Dam reaching maximum capacity.
Nomvula Mokonyane says her department will be communicating with municipalities to consider lifting restrictions immediately.
The Water Department’s Sputnik Ratau says while the Vaal Dam levels have improved, the rate of water inflow into the dam has slowed down.
City spokesperson Lindela Mashigo says residents have not changed their behaviour since restrictions were made public late last year.
Thousands of litres of water are lost daily as some residents in the WC ignore restrictions, and the City does not respond to a leaking meter in GP.
Gardening expert Morne Faulhammer gives some advice on how to keep your garden growing during periods of drought, poor rainfall and water restrictions.
The Water & Sanitation Dept will be reviewing whether to maintain water restrictions in municipalities after May.
The department says this would ensure good water security for the country considering the recent drought conditions.
