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Q&A with Handy Mac: Geysers

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Q&A with Handy Mac: Geysers

Q: My mother bought a small, renovated house which has two 150 litre geysers. They work independently, on separate switches. This will be expensive for a pensioner. Is it feasible to combine the geysers and run both off one switch? What do you suggest? 

A: My plumbing expert Lee says: I’ll try my best here as I haven’t been to the site and don’t know how far these geysers are from each other. Let’s assume they are close and, importantly, are high-pressure units, in other words fed by pressure-reducing valves. 

A perfect design for varying hot water demands is to have geysers interconnected in series, with independent power supplies. These would supply every hot water point in the dwelling. When guests leave, one simply drops the power on the first geyser in the series, reducing hot water capacity. 

In Rob’s mom’s case, the geysers appear to be feeding separate areas so a plumber would have to alter and divert pipes to create a single feed of hot water. The outlet of the first geyser would feed into the inlet of the second geyser, thereby reticulating the geysers in series. 

A plumber should be consulted – preferably one registered with the Plumbing Industry Registration Board or the Institute of Plumbing SA. They will offer the best advice, a competitive price and, ultimately, a professional undertaking that achieves the savings required. 

Handy Mac, aka Don MacAlister, is our expert on household DIY issues. If you have a question for him, please send it to don@macalister.co.za or SMS only to 082 446 3859. Find Don on FB: facebook.com/thehandymac

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