Limberg said according to the city’s water by-law the city does not “constitute an undertaking to maintain at any time or at any point in its water supply system”.
This included maintaining a specific water pressure.
Limberg was responding to questions from News24 over concerns raised that the city’s advanced water pressure reduction scheme could permanently damage solar powered geysers.
During advanced water pressure reduction, residents in high lying areas can expect disruptions to water supply during peak consumption in the mornings between 05:00 and 09:00, and in the evenings between 17:00 and 21:00.
Limberg said high-pressure solar water geysers should be able to withstand a few days without water with no adverse effect on the panel, geyser or pump.
“If water outages are expected to last longer than a week, the city advises customers to cover the panel with reflective sheeting or a dark tarpaulin.”
Water outages are expected to only last a number of hours and not days or weeks, Limber added.
She said that low-pressure evacuated tube systems, which are predominantly installed in low-income households, are at risk when the geyser is completely emptied.
The tubes of the geyser can be damaged when it experiences thermal shock.
Limberg advised residents with low-pressure tube systems to cover the panel with a dark blanket or reflective sheeting and disconnect water to the geyser until the water supply is restored.
Arno van Wyk, managing director at solar heating supplier MrSola, agreed and said no solar geysers, which comply with the South African National Standards (SANS), would burst or explode as a result of prolonged water outages.
“Electrical geysers are also only at risk of burning out their element if they are completely empty,” Van Wyk said.
Professor Thinus Booysen from Stellenbosch University’s electrical and electronic engineering department previously told News24 that solar water geysers are dependent on cold water to regulate temperatures.
He said if water in the panel becomes too hot, or pressure too high, the safety valve opens which replaces hot water with cold water.
“In the event of a water outage, no cold water will replace the hot water, which could lead to overheating, and which could result in scalding (when hot water is used and it is beyond 100°C), and the solar system possibly stalling, which in turn could lead to permanent damage,” Booysen said. DM
Want to watch Richard Poplak’s audition for SA’s Got Talent?
Who doesn’t? Alas, it was removed by the host site for prolific swearing*... Now that we’ve got your attention, we thought we’d take the opportunity to talk to you about the small matter of book burning and freedom of speech.
Since its release, Pieter-Louis Myburgh’s book Gangster State, has sparked numerous fascist-like behavior from certain members of the public (and the State). There have been planned book burnings, disrupted launches and Ace Magashule has openly called him a liar. And just to say thanks, a R10m defamation suit has been lodged against the author.
Pieter-Louis Myburgh is our latest Scorpio Investigative journalist recruit and we’re not going to let him and his crucial book be silenced. When the Cape Town launch was postponed, Maverick Insider stepped in and relocated it to a secure location so that Pieter-Louis’ revelations could be heard by the public. If we’ve learnt one thing over the past ten years it is this: when anyone tries to infringe on our constitutional rights, we have to fight back. Every day, our journalists are uncovering more details and evidence of State Capture and its various reincarnations. The rot is deep and the threats, like this recent one to freedom of speech, are real. You can support the cause by becoming an Insider and help free the speech that can make a difference.
*No video of Richard Poplak auditioning for SA’s Got Talent actually exists. Unless it does and we don’t know about it please send it through.
"Advice is what we ask for when we already know the answer but wish we didn’t." ~ Erica Jong