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Engineering case study

Dewatering stabilised after recurring pump station failures

Repeat pumping failures threatened the water balance of an operating mine. A structured audit rebuilt both the system and the reporting around it.

Commodity
Diamond
Location
South Africa
Duration
7 weeks

The challenge

Recurring pump failures compromised dewatering capacity, with rising energy cost per cubic metre and no reliable water balance visibility.

Our approach

  1. 01

    System audit

    Pump station-by-station audit of duty points, wear, control philosophy and standby capacity.

  2. 02

    Water balance model

    Inflow, storage and pumping capacity modelled to expose the true constraint.

  3. 03

    Selection correction

    Pump and impeller selection corrected to duty, with revised maintenance intervals.

  4. 04

    Reporting framework

    MHSA-aligned reporting framework so water risk stays visible to management.

Outcomes

  • Water balance stabilised
  • Audit closure achieved
  • Energy per cubic metre reduced through correct duty-point selection

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