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River Trails Park District — Dive Well Leak Detection & Emergency Repair (Two-Phase) - commercial aquatic construction by Torwyn Solutions

River Trails Park District — Dive Well Leak Detection & Emergency Repair (Two-Phase)

Mount Prospect, IL
April 2023

Project Summary

Two-phase project: June 2022 emergency response and April 2023 permanent repair. Gutter previously lined was fine, but pool had severe issues with large amounts of water behind membrane causing dramatic wall swelling in deep end and soft floor throughout. Friend flew Branson in with diving equipment during busy season. After diving inspection and system checks, calculated inadequate flow from floor returns indicating major underground plumbing failure. Created 3 discrete underwater pump systems with valves and channels behind membrane to pump out water and keep pool operational for remaining 3 months of season. Worked with construction company to plan permanent fix: leak detection company pre-demo, safe machinery access plan, concrete cutting and pipe replacement, proper floor return count for code. Returned to fix large main drain, set all floor returns, replaced all membrane and race lines.

Initial Conditions

Challenges and issues identified at project start

  • Gutter lining fine from previous work
  • Very large amounts of water coming behind membrane
  • Walls in deep end swelling drastically
  • Entire pool floor filling with water making it seem soft
  • Busy season in progress - pool needed to stay operational
  • Original installation company not called
  • Dozens of floor returns in pool
  • Calculated inadequate water flow from floor returns
  • Underground plumbing failure beneath concrete

Work Performed

Detailed sequence of work completed

  1. Friend flew Branson in with diving equipment
  2. Multiple days conversing with park manager and construction company superintendent
  3. Dove and inspected all systems underwater
  4. Calculated flow rate and compared to floor return count
  5. Determined threshold of water returning to pool was insufficient
  6. Diagnosed major underground plumbing failure
  7. Created 3 discrete pump systems underwater
  8. Mounted valves and channels behind membrane
  9. Engineered water pumping system to remove water from behind membrane
  10. Trained facility and maintenance on pump system operation
  11. Worked with construction company to devise permanent repair plan
  12. Coordinated leak detection company for post-drain fault finding
  13. Planned safe machinery access without excessive damage
  14. Specified concrete cutting and pipe replacement scope
  15. Determined required floor return count for code compliance
  16. Returned post-drain to fix large main drain
  17. Set in all floor returns to code
  18. Replaced all membrane and race lines making it like new

Outcomes & Results

Project deliverables and impact

  • Pool kept from closing during crisis
  • 3 months of remaining season completed successfully
  • Permanent underground plumbing repair completed
  • All membrane and race lines replaced
  • Pool restored to like-new condition
  • Code-compliant floor return system installed

Professional Expertise Demonstrated

Contractor-level skills and certifications

  • Advanced diagnostics with diving inspection
  • Emergency problem-solving during peak season
  • Hydraulic calculations and flow rate analysis
  • Underwater installation of emergency pump systems
  • Training and supervision of facility maintenance staff
  • Multi-phase project planning and management
  • Coordination with specialized subcontractors (leak detection)
  • Underground plumbing system design and specification
  • Code compliance expertise for floor returns
  • Crisis management while maintaining operations

Stakeholder Coordination

Project collaboration and partnerships

  • Park manager
  • Construction company superintendent
  • Leak detection company
  • Facility maintenance staff training

Codes & Compliance

Building codes and regulatory standards

  • Floor return count and spacing requirements
  • Main drain compliance

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