Problem and Purpose Statement.

Problem Statement:

According to CP 48 (2005), high level water storage tanks in high-rise Housing & Development Board (HDB) flats store at least one day’s worth of water to cater to residents staying at the upper floors during periods of water supply disruption (see Figure 1). However, residents staying at lower floors continue to be affected by the disruption as their water supply comes directly from the main inflow pipe (see Figure 2).

Need therefore arises for the implementation of low level water storage tanks with a storage capacity of at least one day’s water usage requirement, in order for the residents staying at lower floors to be able to draw water reliably even during temporary water disruptions.

Purpose Statement:

The aim of this report is to propose to the Town Council the construction of two water storage systems, which will be located at low level. These twin tanks will have a combined storage capacity equivalent to one day’s water usage requirement for the residential block, and will be connected in parallel to supply water in a similar fashion to the existing high level water storage tanks, so as to maintain redundancy within the water storage system. This implementation will reduce the occurrence of water disruptions and improve the reliability of water supply for residents.

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Commented on Adam and Calvin blog post on 09/12/2016