Green algae in swimming pool — Krakow, Lesser Poland
Green, slimy water and algae growth on pool walls or floor indicate that the sanitizer level has dropped too low, the filtration system isn't running enough hours, or the pH is out of range. Left untreated, algae can clog the filter, stain the plaster, and make the pool unsafe to swim in. A pool technician can test the water chemistry, perform a shock treatment, brush and vacuum the surfaces, clean or backwash the filter, and adjust the chemical balance to prevent recurrence.
Who to call
For this problem in Krakow, call a: Zwembadtechnicus
Vind een Zwembadtechnicus in KrakowSymptoms to look for
- Pool water turns green, cloudy, or has a slimy film on the surface
- Green or black patches growing on pool walls, steps, or floor
- Filter pressure gauge reading higher than normal (clogged filter)
- Strong chlorine smell yet low free-chlorine test result (chloramines, not free chlorine)
Spoeddienst in Krakow
Emergency services in Krakow are available 24/7 with response times of 20–45 minutes in the city center. Emergency calls typically cost PLN 150–400 for the initial visit. Krakow's compact size means faster response than larger Polish cities.