• March 2020: Elevating the humble loo block

    It is estimated that by 2025 half of the world’s population will be living in water-stressed areas due to growing population. Employing Enviro Loo sanitary technology, construction technology company BOXA and its partners have installed a fixed, off-grid toilet facility at Victoria Yards, a landmark urban regeneration project, near the Johannesburg CBD.

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  • February 2020: City living demands an innovative hot water solution

    What makes the 158 rental units at the eight-floor 2A Harrison St, Marshalltown overlooking Standard Bank’s head office on Rissik Street, unique is the choice to use a decentralised water heating solution provided by Stiebel Eltron’s instantaneous water heaters.

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  •  A non-disruptive solution to healthcare plumbing

    By Eamonn Ryan

    Helen Joseph Hospital in Auckland Park, Johannesburg, was built in 1967. Fifty-two years on, following a series of blockages on its old earthenware pipeline, especially beneath the main kitchen, Nu Flow was called in to conduct a CCTV pipeline inspection.

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SABS publishes standard that sets guidelines for domestic use of greywater

By SABS

 The South African Bureau of Standards (SABS) has published a South African National Standard (SANS) that sets the guidelines and requirements for greywater reuse systems. SANS 1732: 2019 provides for single re-use of greywater for sub-surface irrigation of gardens and the treatment of greywater for flushing toilets.

Garth Strachan, Acting CEO of SABS. Credit: IMD“In a water scarce South Africa, SANS 1732 provides basic requirements and guidelines for ordinary households to safely reuse water. Most households cannot afford to install sophisticated and expensive water treatment or collection applications and SANS 1732 offers practical solutions to reuse water from baths, showers and wash hand basins for watering gardens or flushing toilets. The reuse of untreated greywater will significantly reduce the demand on constrained water resources and enable South Africans to contribute towards reducing water consumption,” says Garth Strachan, Acting CEO of SABS.

SANS 1732: Greywater Reuse Systems – General Requirements, was locally developed over several months through a technical committee (TC 60), made up of a group of industry experts and specialists. Various reviews of international standards; South African needs and development goals; a focus on the safety of people and environment concerns were some of the criteria that was taken into account through the development process.

“Reusing and repurposing greywater promotes the conservation of water, without compromising public health and the environment. While there are additional standards which guide industries and the built environment on the installation and use of greywater, SANS 1732 was developed with the focus on allowing every household to practically adopt basic greywater management,’ says Strachan.

Before a standard is published, it undergoes a period of public scrutiny where the comments of the public are taken into consideration. The standard is available for purchase via the SABS webstore, which can be accessed via www.sabs.co.za.


 


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