Vaal Dam levels

[bigboy529]

Are you saying, the past drought was an welcomed excuse for the idiots in charge? If so, what excuse are they going to use now?

Probably that apartheid gov built the Vaal too small?

 

[*SynergyX*]

first not enough water....now too much water....aiiiii!!!

 

[c3n0byt3]

That's what I'm saying.

I fully expect them to come back saying that we're a water scarce nation and thus level 2 restrictions will be in place forever

And I am hopeful the public will call them on this.

 

[Hamster]

Probably that apartheid gov built the Vaal too small?

Can't. They already blamed them for building it too big.

 

[WaxLyrical]

Are you saying, the past drought was an welcomed excuse for the idiots in charge? If so, what excuse are they going to use now?

Actually there definitely was a severe water shortage looking at the video evidence.

I seem to recall water gets recycled and that South Africa has, no sorry had a world class water purification and recycling system?

Pretty sure that's all in the past now, hence the introduction of restrictions.

 

[Unhappy1]

Actually there definitely was a severe water shortage looking at the video evidence.

I seem to recall water gets recycled and that South Africa has, no sorry had a world class water purification and recycling system?

Pretty sure that's all in the past now, hence the introduction of restrictions.

Lots of rivers are just too dirty now.

 

[AstroTurf]

Lots of rivers are just too dirty now.

Too many people without sanitation live upriver.

 

[Sinbad]

Actually there definitely was a severe water shortage looking at the video evidence.

I seem to recall water gets recycled and that South Africa has, no sorry had a world class water purification and recycling system?

Pretty sure that's all in the past now, hence the introduction of restrictions.

There was no shortage. We had more than two years supply in sterkfontein

 

[WaxLyrical]

There was no shortage. We had more than two years supply in sterkfontein

What about the ecosystem at the Vaal and farmers who rely on actual rainfall?

2 years supply is vague without knowing future usage and situations?

 

[Sinbad]

What about the ecosystem at the Vaal and farmers who rely on actual rainfall?

2 years supply is vague without knowing future usage and situations?

So now we have 4 years supply.
How much less vague is that?

 

[Unhappy1]

There was no shortage. We had more than two years supply in sterkfontein

Its more complicated than that, Sterkfontein holds water extremely well. The moment you release water from it evaporation increases exponentially and you don't have those two years anymore.

 

[Sinbad]

Its more complicated than that, Sterkfontein holds water extremely well. The moment you release water from it evaporation increases exponentially and you don't have those two years anymore.

well yes you do. You release it at the rate that it is needed by the vaal. Not all in one go.
The two years presupposes vaal dam levels of evaporation... So in fact it's more.

 

[WaxLyrical]

So now we have 4 years supply.
How much less vague is that?

About half?

 

[Unhappy1]

well yes you do. You release it at the rate that it is needed by the vaal. Not all in one go.
The two years presupposes vaal dam levels of evaporation... So in fact it's more.

Source?

 

[Sinbad]

Source?

Tugela river up to Sterkfontein.

But that's not what you meant, right?

Volume of sterkfontein is about the same as that of the vaal.

Vaal was going down at about 1% every week - so that's about 2 years...

 

[Gaz{M}]

Ok but what about Rand Water telling municipalities that they are throttling water delivery down by 15%? Hence reservoirs ran dry all over JHB and PTA.

 

[Sinbad]

Ok but what about Rand Water telling municipalities that they are throttling water delivery down by 15%? Hence reservoirs ran dry all over JHB and PTA.

Apparently the department of water and sanitation mandated that.

 

[Unhappy1]

Tugela river up to Sterkfontein.

But that's not what you meant, right?

No sorry should have been more accurate , i meant source as in where you are getting your information from.

Volume of sterkfontein is about the same as that of the vaal.

Vaal was going down at about 1% every week - so that's about 2 years...

That's not very scientific, you aren't accounting for how much was coming in over that period of time, which other dams in the area were being used or average evaporation over the course of a year.

 

[Sinbad]

No sorry should have been more accurate , i meant source as in where you are getting your information from.



That's not very scientific, you aren't accounting for how much was coming in over that period of time, which other dams in the area were being used or average evaporation over the course of a year.

If we were in the middle of a major drought, as everyone was saying, then nothing was coming in. Indeed, all that was coming in was the 30 cumecs from the LHWP.
During the periods of 30 cumec inflow we were going down at about 1% every 10 days.

Going by observation of effects here which is about as scientific as you can get in something like this, IMHO

 

[Ho3n3r]

Latest prediction - seems more inflow than predicted this morning, probably due to more rain last night (not sure) - back up over 100% in a few days: