Pool water turning green — Madrid, Madrid
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 Madrid, call a: Zwembadtechnicus
Vind een Zwembadtechnicus in MadridSymptoms 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 Madrid
Emergency services in Madrid respond within 30–75 minutes in the central districts. Callout rates run €55–€140 plus €45–€75/hour including IVA — among Spain's highest after Barcelona. Winter cold snaps drive burst-pipe and heating-failure surges that can stretch waits; verify the contractor is a registered instalador autorizado with the Comunidad de Madrid before granting entry.