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Reviewed by Marcus AldridgeSenior Editorial Reviewer — Plumbing, HVAC & Wet Trades
Who to call · Dordrecht

Pool water turning greenDordrecht, South Holland

Green pool water is caused by algae growth, typically from insufficient chlorine levels, poor filtration, or unbalanced pH. While mild cases can be treated with shock treatment and brushing, severe algae blooms may require professional intervention including draining, acid washing, and chemical rebalancing. A pool technician can restore water clarity and set up a maintenance plan.

Who to call

For this problem in Dordrecht, call a: Pool & Spa Technician

Find a Pool & Spa Technician in Dordrecht

Symptoms to look for

  • Pool water has turned green, cloudy, or dark — you can't see the bottom
  • Green or black algae visible on pool walls, steps, or floor
  • Chlorine levels test near zero despite recent addition
  • Strong musty or swamp-like odor coming from the pool

Emergency Service in Dordrecht

Emergency services in Dordrecht respond within 25–55 minutes across the island city and the wider Drechtsteden (Zwijndrecht, Papendrecht, Sliedrecht). Emergency rates run €70–€160 for callout plus €65–€120/hour including BTW — modestly below Rotterdam and well below Amsterdam.

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