Mains water system, pressure reducing valves
Authority [[manx-utilities-authority
Date received 2025-12-17
Outcome Some information sent but part exempt
Outcome date 2026-01-15
Topic [[finance-tax

Summary

The request sought total procurement, installation, and maintenance costs for pressure reducing valves installed since 2018, along with the analysis justifying their use over pipe replacement. The authority disclosed aggregate procurement costs, unit counts, and estimated installation figures, but withheld specific unit prices citing commercial sensitivity.

Key Facts

  • Manx Utilities ordered 28 Pressure Management Valves (PMVs) between January 2018 and December 2025.
  • 25 PMVs have been installed, with 3 currently held in stock.
  • The total procurement cost for the 28 valves was £59,270.
  • Specific unit costs are withheld as commercially sensitive, though the average range is estimated at £800 to £1,000.
  • The estimated total installation cost for the 25 valves is approximately £130,000.

Data Disclosed

  • 28
  • 25
  • 3
  • £59,270
  • £800
  • £1,000
  • £4,000
  • £130,000
  • 1st January 2018
  • 31st December 2025
  • three and five-year cycle

Exemptions Cited

  • Commercial sensitivity regarding specific unit prices under a fixed-term agreement

Original Request

Please could you provide the total cost to date of procurement of the pressure reducing valves (PRVS) that have been installed around the islands water mains system since 2018, including the budget of expected ongoing maintenance and any other future costs considered regarding these PRVS.

In particular, the cost per unit (understand if this needs to be average cost if PRVS are not identical), the number of units ordered/received/installed to date and how many PRVS are currently held in inventory by Manx Utilities. In addition an estiamte of the costs incurred to date in installing these valves.

Please could you confirm what analysis was undertaken by Manx Utilities when making the decision to procure and install these PRVS in order to save water through leaks and bursts, and what considerations were were given to show these funds were best served in this way instead of using the funds to repair/replace/update the unfit water mains pipes and systems to stop leaks and bursts fully.