PROJECT
47
Ring main pump with backup to main building.
their technical team do a site survey and received a proposal
on the type of system to install based on the size and usage
demands of each of the buildings in the resort. All of the
buildings were to have water ring mains installed to ensure
instant delivery of hot water on demand.”
Strydom Senior explains that for ease of installation and
availability it was decided to use the COBRA MLP system
as it uses standard fittings and for future repairs and
maintenance.
He describes the other choices:
• All copper tubing that was to be used was to be Class 2
to ensure longevity.
• Stormwater drainage on site had to fulfil the following
requirements:
- - Enough rainwater is diverted to the existing
underground tank to build a backup supply for
irrigation and to be used as pool filler supply, since
Knysna is in a water-scarce region;
- - Provide enough drainage in event of a ’50-year
storm event’ so that ground erosion and on-site
flooding is avoided and as little damage as possible
occurs; and
- - All excess water is diverted to the on-site pond/dam
where it could then naturally flow away.
• Sewer system: “The layout of the sewer system
drainage was designed to cater for the new main
building, new resort buildings and the two residential
units on site. Service availability for future planned
expansion had to be built into the design layout of
Knysna Hollows,” explains Strydom Senior.
• Water Reticulation: A high pressure 63mm PVC ring
main was installed to supply adequate delivery of
potable water to the entire resort. This ring main was
nearly 800m in length.
• Fire hydrant and hose reels supply: An independent
110mm HPVC system was installed in accordance to
September 2019 Volume 25 I Number 7
Japie Strydom and senior team leader Sergio Machelle.
www.plumbingafrica.co.za