Who to call · Haarlem
Pool water turning green — Haarlem, Noord-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 Haarlem, call a: Zwembadtechnicus
Vind een Zwembadtechnicus in HaarlemSymptoms 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
Spoeddienst in Haarlem
Spoeddiensten in Haarlem reageren binnen 25–50 minuten; de compacte monumentale binnenstad kan de toegang vertragen. Spoedtarieven rond €75–€175 voorrijden plus €70–€130/uur incl. btw.