Internal Water Reticulation
Introduction
Internal water reticulation refers to all piping networks within a facility after the Water Meter from the Mains. In a typical grounded residence in Malaysia After the Main water Meter Piping is laid straight to the Kitchen where the Kitchen Sink and Washing Machines get water from The mains. There will also be a Tee tapping sending the water up to the roof Storage Tank.
Water from the Storage Tank is Supplied to all the Washrooms within a Residence. In Malaysia The Very Basic Licence required to do such installations is the SPAN A1 Licence. Plumbers with Licence adhere to the available guidelines by the Local water authority in terms of types of piping to be used, pipe sizes, Ideal Locations to place valves etc.
Common Mistakes done by Non certified personnel (Sub Heading)
These are several common mistakes done by non-certified workers :
- Piping glue only applied on one side
- Using Regular Pressure glue instead of High-Pressure PVC Cement Glue
- Fixing water tank at the wrong location making it difficult for maintenance works
- Incorrrect Pipe size- Piping from the tank is normally 1" then reduced to 3/4" upon reaching the Washroom Master Valve. Each end points like Bidets, shower, toilet cistern and Sink are normally reduced from the 3/4" piping to 1/2" by means of a reducing Tee or Reducing Elbow. We have seen cases where the entire washroom using a 1/2" piping which will cause restricted flow especially when more than one service or end point is used.