Green Pool Guide
Why Is My Pool Green — And How Do I Fix It Fast?
A green pool is almost always caused by algae thriving in unbalanced water. South African summers, intense UV, and warm temperatures make pools especially vulnerable.
Common Causes
- Poor water circulation
- Heavy rain introducing contaminants
- Neglecting monthly treatment
- Unbalanced water pH
- Lightning storms
Signs Your Pool Has Green Algae
- Water looks green or cloudy
- Pool walls feel slippery
- Green algae appears on steps, corners, or the floor
How to Clear a Green Pool with Activator-D™
- Test and balance your water (pH 6.8–7.2)
- Backwash your filter before treatment
- Brush walls and floor thoroughly
- Pour the Activator-D Powder directly into the skimmer/weir
- Pour the Activator-D Liquid into the skimmer/weir immediately afterwards
- Run the pump continuously for 8–12 hours
- Brush any stubborn algae and allow the filter to remove dead algae
- Vacuum dead algae to waste
Tips for Best Results
- Clean the skimmer basket before treatment
- Run the pump overnight if possible
- Vacuum the pool after treatment if dead algae settles on the floor
- Apply Activator-D™ every month to prevent regrowth
Most pools begin clearing within 24–48 hours depending on the severity of the algae.
Activator-D™ is a chlorine-free monthly treatment specifically formulated to kill green and black algae at the root — keeping your pool crystal clear all year round.
Need Help Choosing the Right Activator-D Pack?
Whether you're treating a green pool, black algae, or maintaining crystal-clear water every month, Activator-D makes pool care simple.
Shop the Activator-D 1 Pack, 4 Pack or 10 Pack and enjoy fast delivery anywhere in South Africa.