Time depends on how heavy the bloom is and the state of your equipment. Light green pools with good filtration often clear within 24 to 48 hours after shock, algaecide and proper filtration. Dark green or almost black water can take several days and may need floc to drop fine particles to the floor before vacuuming to waste. Our goal is quick, stable results. We set the correct chemical levels and run times so the pool stays clear after we leave, not just for a day.

Common causes include low chlorine, poor circulation, warm water, high bather load, storms that dump debris, and imbalanced pH or stabiliser. A failed or undersized pump or a dirty filter also allows algae to grow. During Green Pool Treatment Sydney we test for these problems, correct them, and give you a simple plan to prevent algae returning. Prevention is easier and cheaper than repeat shock treatments.

Usually no. Draining can damage some pools and is rarely needed. We prefer to correct balance, remove debris, and use shock, algaecide, filtration and floc if required. We may vacuum to waste to remove dead algae without pushing it through the filter. We recommend partial drains only for very high stabiliser, salt or calcium levels, or if the water is severely contaminated. We always explain why before any step like this.

Not when done correctly. We adjust pH and alkalinity before shocking to protect surfaces and make chlorine more effective. We also follow safe dosage rates based on pool size and system type. Our team checks equipment, o-rings and valves, cleans the filter, and advises if any parts need service. Safe handling and correct order of steps protect plaster, pebble, vinyl and fibreglass finishes, as well as pumps, filters and heaters.

Yes. Salt and mineral pools still rely on correct chlorine levels. We check cell output, salinity and controller settings, then apply shock and algaecide to break the bloom. We clean or backwash the filter and set a run schedule that supports recovery. If the cell is weak, we will tell you and suggest service or replacement so the pool stays clear after the treatment.

Cost depends on pool size, how far the bloom has progressed, and the chemicals needed. We provide upfront pricing before we start and keep you updated if the plan changes, such as adding floc or a second visit. Our focus is value for money through correct diagnosis, the right products, and steps that prevent the same issue from returning.

No. Safe swimming levels must be restored first. After shocking, chlorine can be high and pH may be adjusting. We will tell you when it is safe to swim again. This is usually when chlorine and pH are within standard ranges and the water is clear with the bottom visible. Safety and clarity come first.

Run the pump if it is operational and empty skimmer and pump baskets. Remove large debris with a leaf rake to speed things up. If the system is off or tripping power, leave it off and we will diagnose on site. Have the pool size handy if you know it. Small steps like these help us move faster and reduce total chemical use.

We include clear aftercare instructions and, where needed, a follow up check to confirm clarity and balance. Heavier blooms may need a second visit to vacuum settled floc or to fine tune chlorine and stabiliser. We keep the plan simple and make sure you know how to keep the pool clear with routine testing and correct run times.

Keep free chlorine in range, test weekly, clean baskets, and backwash or clean the filter when the pressure rises. Run the pump long enough to turn the pool volume over, especially in warm weather. Brush steps and dead spots, and keep pH and stabiliser in the recommended range. If you have a salt or mineral chlorinator, check cell output and salinity. These habits prevent most blooms and keep costs down all year.