PROJECT
“We did 80m of
rehabilitation in
this first phase of
the project, with
another 100m to be
rehabilitated within
a few weeks, and a
further 200m which still
requires inspection.”
37
1
For this reason, Nu Flow specialises in hospitals with
Helen Joseph simply being the latest. “In a hospital,
you have to work cleanly and be in and out quickly.
The pipes are under constant and heavy use and
cannot stop for any length of time. This gives you
very limited hours and you have to complete the job
according to their hours. We accomplish this through
pre-impregnation of the resin into the liner before
taking it to the hospital which takes on average six
hours out of the set-up process.”
The UV technology is ideally suited to a hospital
project which cannot be closed for any period of
time. The UV process enables pipelining to cure in an
average of 20 minutes what traditionally could take
anywhere from four hours to a full day. The shorter
duration consequently does not affect the operations
of the healthcare facility.
The company also has custom-designed vehicles
to transport the pre-impregnated liner to site. “The
UV light is the catalyst. This has changed everything
for us because we now have control over the entire
process – no reliance on weather conditions and
temperature.”
2
Nu Flow is not a firm of plumbers, but rather
installers of its technology. It is increasingly forming
partnerships with plumbing firms – to supply them
with a system, leaving Pohorille to focus on the
training of plumbers on its system as a supplier.
The findings
• Defective piping displaced
• Bad joints
• Holes in the pipe
January 2020 Volume 25 I Number 11
Before any inspection could be done Nu Flow had to
jet clean the pipes and send through an inspection
camera. This is where Nu Flow’s relining system
comes into its own, because to fix the pipes in any
other manner would require the virtual closing of the
hospital especially as it affected the kitchen. “On site
we conducted a CCTV camera survey on the sewer
lines and found there to be many defects:
1-2: Ultraviolet curing in progress.
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