Water, Sewage & Effluent November December 2018 | Page 15

environment
contaminated air in the piping is released into the
environment of the room in which it is situated.
So, the problem is, how do we change the design
of the sanitary drainage system? I do believe it can
be done — it is changeable, but it will be costly. u
All along the sewage network, other buildings are
connected, such as mortuaries, abattoirs, butcheries,
factories, restaurants, and even the undertaker.
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innovations
Water Sewage & Effluent November/December 2018
Vollie Brink (PrEng, MSAICE, MPMISA,
MFEASA) is one of the industry’s longest-
serving wet service engineers. He continues
to serve on SABS committees and has been
involved in the Green Building Council Star
rating system. Brink continues to consult for
various organisations while enjoying a well-
deserved retirement.
About the author
In Part 2 of “System Design Issues”, which will
feature in our January/February edition of Water,
Sewage & Effluent, Vollie comes up with some
suggestions for changing the design of the sanitary
drainage system and covers other problems in the
industry, such as designer incompetence.
Acknowledgement
US National Library of Medicine,
https://www.ncbi.nlm.nih.gov/pubmed/28792484