Most Florida green pools clear in 3–7 days with professional treatment: light green in 2–4 days, medium green in 3–5, and dark green or black in 5–10 or more. High phosphates and a clogged filter slow it down. Clear Ripples green-to-clean service starts at $450.
Green Pool Recovery Timeline
Most Florida green pools clear within 3–7 days with a proper professional treatment. That range covers the majority of cases — light green with visible bottom clears faster, heavy green with zero visibility takes longer. Here's how to read where your pool falls.
Light green (visible bottom, water has a tint): 2–4 days. Chlorine shock, algaecide, extended filter run, and a follow-up brushing typically clears this within a weekend. Chemistry rebalance completes the job.
Medium green (murky, can see 6–12 inches down): 3–5 days. Requires heavier shock dosing, phosphate treatment if elevated, and potentially a filter cleanout partway through treatment as the dead algae loads the filter media.
Dark green or black (zero visibility): 5–10 days minimum, sometimes longer. At this stage, the chlorine demand is extreme — the pool may consume multiple shock treatments before the water starts to clear. Black algae (which roots into plaster) requires mechanical brushing in addition to chemical treatment and may need a follow-up acid wash to fully remove staining.
What Slows the Process Down
High phosphates are the number one reason green pools take longer to clear than expected. Chlorine kills algae — but elevated phosphates allow it to regrow as fast as chlorine can knock it back. If a pool doesn't start clearing within 48 hours of proper shock treatment, phosphates are almost always the reason.
A dirty or clogged filter also extends recovery significantly. The filter has to capture all the dead algae — if it's already at capacity, dead algae recirculates back into the pool instead of getting trapped. Backwashing or cleaning the filter during treatment, not just before it, is often necessary.
In severe cases, a drain-and-refill is faster and cheaper than extended chemical treatment. A professional assessment tells you which path makes more sense for your specific pool. Contact us for a same-week green pool assessment — we give you an honest timeline and cost before any work begins. See our full Green to Clean service page.