SANS 721 — correct at last

By Warren Robertson

SANS 721 has been a headache for years. The first version of the standard, dictating the necessary quality for polypropylene pipes and pipe fittings for soil, waste, and vent applications for above-ground non-pressure use, proved to be woefully inefficient.

Let’s talk about backflow prevention

By Richard Bailie

With so much attention being focused on the standards and regulations that surround the generation of hot water in a home (think of the recent changes to SANS 10254 and the installation requirements of heat pumps and solar installations), you would be forgiven for letting something like backflow prevention slip your mind.

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