What question did this study set out to answer?

The central aim is to critique the methodologies used for optimizing pump scheduling in water distribution networks.

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March 16, 2026Open Access

Comment on “A new Digital Harmony Search algorithm for optimizing Pump Scheduling in Water Distribution Networks” by Francesco De Paola, Francesco Pugliese, Nicola Fontana, Maurizio Giugni

Key Points

The central aim is to critique the methodologies used for optimizing pump scheduling in water distribution networks.
Analysis of pump actuation constraints.
Review of relevant literature for context.
Validation of proposed solutions using EPANET.
Identified inconsistencies with established literature.
Challenged the feasibility of the proposed solutions.
Found violations of hydraulic constraints in reported results.

Abstract

This comment addresses critical issues in De Paola et al. (2025), focusing on (i) the interpretation of pump actuation constraints, (ii) omission of relevant literature, and (iii) feasibility of proposed solutions when validated in EPANET. Evidence shows that the assumptions adopted by De Paola et al. (2025) are inconsistent with Costa (2016) and subsequent clarifications, and that their reported solutions violate hydraulic constraints.

Comment on “A new Digital Harmony Search algorithm for optimizing Pump Scheduling in Water Distribution Networks” by Francesco De Paola, Francesco Pugliese, Nicola Fontana, Maurizio Giugni

Key Points

Abstract

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