PROJECT
43
2
1
Other products from Grundfos that were used during
the project included the CU 200 controller and a CM
5-3 pump. A 4 core 6mm cable and a 50mm HDPE
class 16 pipe were also used in the installation.
3
WHAT’S NEXT FOR THE FUTURE
This project’s payback period is expected to be
two years. It can be regarded as an investment
because Nedbank will not be paying for water and
electricity to operate the borehole. Once installed,
the borehole pump requires little maintenance
and can last for a long time, which also makes it a
sustainable solution.
Nedbank hopes to expand the project to a point
where the entire building’s water reticulation
system does not rely on the municipal water and
electricity grid. Rivers also hopes to add another
controller that will take the surplus energy not used
by the borehole pump and direct it to the building.
1.
2.
Both Nedbank and Rivers believe that this project
is a step closer to going completely ‘green’ and
positively contributing to environmental awareness
and sustainability in the process. Green solutions
should always be a forethought with all projects and
will always be on the table for the Rivers team as
the preferred solution. PA
LIST OF PROFESSIONALS
Project manager Rivers Projects and Plumbing Services
Equipment/
products Grundfos
HDPE pipe House of Plumbing
www.plumbingafrica.co.za
3.
IO 101 manual crossover
switch for emergency 220V
power supply.
From left: David Jiyane
(maintenance assistant at
Nedbank), Ashley Sams
(facilities manager at
Nedbank), Errol Dobson (team
leader building services at
Grundfos), Sibahle Mthembu
(student), Vumani Zondi (solar
and renewables technician at
Rivers), Edwin Molele (solar
and renewables technician
at Rivers), and Frank Crisafulli
(managing director of Rivers).
The UV filtration system.
The system has
come at a time
where water
saving has
become critical
in South Africa.
November 2017 Volume 23 I Number 9