Upfront with Refilwe Moloto

Is pneumonia-causing bacteria lurking in geyser?


Guest: Dr Jo Barnes is a senior lecturer in Community Health at Stellenbosch University's Faculty of Health Sciences.

In South Africa, there is no information about the prevalence of Legionella in domestic
water heaters, which normally heat water to 65°C. However many users keep
temperatures as low as 40°C in a compromise between being more financially savvy
and still enjoying a satisfactory water temperature. This is the perfect environment for
the growth of Legionella which thrives at temperatures from 37 to 42°C.

To determine the presence of Legionella, the researchers cut open water heaters
shortly after they had failed mechanically and collected samples and biofilm scrapings
from inside the heaters. They also separately used microbiological techniques to assess
the presence of Legionella at the point-of-use in the tap water from five active heaters,
which they compared to cold water from the same source as a control.

According to the findings in the study, the bacterial concentrations in the plumbing
between the water heater and the taps were as much of a concern as those in the
heater tank.

BUSINESS - Estate planning 101. Everything you need to know before you die. Guest: Lisa Hudson-Peacock | Certified Financial Planner at Southwood

BUSINESS - Estate planning 101. Everything you need to know before you die. Guest: Lisa Hudson-Peacock | Certified Financial Planner at Southwood

26 August 2019 10:47 AM

80 days without MyCiTi Busses on the N2 Guest: Felicity Purchase | Member at City of Cape Town

80 days without MyCiTi Busses on the N2 Guest: Felicity Purchase | Member at City of Cape Town

26 August 2019 10:37 AM

300 year old burial site unearthed in Simon's Town Guest: Simon Liell-Cock

300 year old burial site unearthed in Simon's Town Guest: Simon Liell-Cock

26 August 2019 10:11 AM

Open Line: Academic Plagiarism

Open Line: Academic Plagiarism

26 August 2019 9:42 AM

Treat yo self The Silo Hotel

Treat yo self The Silo Hotel

23 August 2019 12:35 PM

Dating, Mating and Relating for Dummies"

Dating, Mating and Relating for Dummies"

23 August 2019 11:35 AM

Swearing is impossible to ban

Swearing is impossible to ban

23 August 2019 11:33 AM

The Hope Exchange

The Hope Exchange

23 August 2019 11:05 AM

Property: A few tweaks to a higher selling price

Property: A few tweaks to a higher selling price

23 August 2019 10:37 AM

Open Line: Public Transport

Open Line: Public Transport

23 August 2019 9:51 AM