Ukraine Wave Pool: 60% Less Chlorine, Clear Water

Home 9 Case Studies and Results 9 Ukraine Wave Pool: 60% Less Chlorine, Clear Water
Key results
60% chlorine reduction
620m3 pool capacity
95.7% E. coli reduction

Case Study from HydroFLOW Ukraine

Wave pool chlorine reduction and water clarity

Wave pool chlorine reduction was needed at a 620 cubic metre wave pool in Ukraine that was regenerating its filters frequently and dosing chlorine heavily. Even so, biofilm was forming on the water surface and organic particles were clouding the water, under the high bather load a wave pool carries. In June 2018 one HydroFLOW® unit was fitted before the circulation pump and sand filters, with the pool open. Filtration improved, the surface biofilm stopped forming, and the water was clear within 12 days. Chlorine use came down by 60%, and clarity was maintained under high bather load.

The Challenges

  • Wave pool chlorine reduction was needed, with high dosing in use
  • Frequent filter regeneration was required
  • Biofilm was forming on the water surface
  • Organic particles were reducing clarity
  • The pool carries a high bather load

Wave pool water before and after treatment – Ukraine

The Solution

  • Unit installed: one HydroFLOW® unit
  • Installation point: suction side of the circulation pump, before the sand filters
  • Installed: June 2018, with the pool open
  • System: 620 m³ wave pool

The unit went on the suction side of the circulation pump while the pool stayed open, so the improvement was measured under normal bather load rather than in a quiet period. The signal improves filtration and disrupts the conditions that let biofilm form. The operators reduced chlorine dosing step by step as the water tests allowed, and the wave pool chlorine reduction reached 60%.

Key Outcomes

R

Daily chlorine fell from 15 to 4-6 litres

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Laboratory testing showed 95.7% less E. coli

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Water cleared to a blue appearance

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Filter regeneration intervals extended

Independent Verification

All results in this study were measured and verified by third-party facilities managers and technical staff.

Summary

Clear water in 12 days with 60% less chlorine is a strong result for a wave pool, the hardest leisure water to keep clear because of the bather load and the agitation. Filter regeneration went from frequent to routine, and the surface biofilm was eliminated. For leisure pool operators the takeaway is that the filters, not the chlorine, were the limiting factor.

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