PROJECT
The water is then pumped via the Grundfos hydro
multi-B pump set in a 63mm HDPE pipe below
the ground to various parts of the property. More
than 600 metres of pipe were laid in the ground.
Carrying out this extensive work eliminated the
need to rely on existing unreliable infrastructure
to supply the project with water.
External sewerage installation
Castle Kyalami is situated in a remote area and
has no existing council sewer connection. The
sewer waste is disposed of in two ways:
• The waste from the main building is
disposed of through sewer septic pumps,
where all the drainage in the castle is
directed into two sewer sump pits. From
these pits, the waste is pumped via a Xylem
Flygt sump pump up and over the hill, into
the municipal sewer system in Kyalami
Business Park. The waste has to travel
through 500 metres of 100mm galvanised
pipework above ground before reaching the
municipal sewer system.
• In areas that are low lying on the project,
sewer waste is fed to the Calcamite
Bio-Mite septic tanks — which is the
second sewer waste disposal method.
The tanks are unique in that they do not
need to be serviced regularly. The Bio-Mite
incorporates a biological process to clean
incoming wastewater. In this process,
a biomass of bacteria breaks down
biodegradable waste and converts it into
carbon dioxide and water.
37
Internal plumbing installation
The internal plumbing installation of the Castle
Kyalami project comprised removing all existing
plumbing services, only keeping sewer pipes
that could not be moved. In the process of the
installation, GDM Plumbing installed over 2.7km
of Geberit Mepla water pipe to bring the system
back to SANS standards and quality. A full
renovation was done on the 24 hotel suites and
conference centre, including a complete catering
kitchen and new office building.
Hot water system
Hot water is supplied to the castle via 25 Kwikot
heat pumps and geysers of various sizes.
PRODUCT USE
Following the client brief, products with reliable
and renowned quality and customer service were
selected. The products included sanitaryware
from Duravit, tapware from Grohe, built-in
systems from Geberit, geysers and heat pumps
from Kwikot, pumps from Grundfos, and septic
tanks from Calcamite.
ELECTRICITY USE AND SUSTAINABILITY
During this proje ct, 25 heat pumps and geysers
were installed. The heat pumps in particular
have a significant impact on reduced energy
consumption of the castle.
The heat pumps are used to remove the
electrical load from the geysers, therefore
using less electricity throughout the building.
Continued on page 39 >>
2
1.
2.
Geberit shut-off valve and Mepla pipe installation.
Vulcan sink unit with cobra tap.
www.plumbingafrica.co.za
April 2018 Volume 24 I Number 2