When your pool water is green or contains visible algae clumps, your pool does not have enough chlorine. "Shocking" the pool with a large dose of chlorine is the most effective way to kill the existing algae and bring your pool back to sanitary conditions. This usually works within 1–3 days, but can take up to a week if pool conditions are poor. The other methods listed below are faster, but may not fix underlying sanitation concerns. They are also more expensive and can have unwanted side effects. Brush vigorously to remove as much of the algae as possible. This will reduce the amount of time it takes to kill and clear the algae bloom. Pay special attention to the steps, behind ladders, and other nooks and crannies where algae tends to gather.  Make sure the brush is compatible with your pool. Steel brushes work well on concrete, while nylon brushes are preferable for vinyl pools. You'll be handling dangerous chemicals during this method. Always read the safety information on the labels first. At minimum, follow these safety standards for all pool chemicals:  Wear gloves, eye protection, and clothing that covers your skin. After use, wash hands and inspect clothes for chemicals. Avoid inhaling the chemicals. Use caution when handling in windy weather. Always add chemicals to water, never water to chemicals. Do not place wet scoops back in container. Store chemicals in sealed, fireproof containers, away from children, on separate shelves on the same level (not one above the other). Many pool chemicals explode when they touch another pool chemical. Use a swimming pool pH test kit to measure the pH of your water. If the pH is above 7.6 — which is common during an algae bloom — add a pH reducer (such as sodium bisulfate) to your pool according to label instructions. Aim for pH levels between 7.2 and 7.6 to make your chlorine more effective and reduce the growth of the infestation. Wait at least a couple hours, then test the pool again.  Test kits that use tablets or droppers are much more accurate than paper...

How would you rephrase that briefly using Indonesian?
Gunakan klorin untuk membunuh alga. Sikat dinding dan lantai kolam renang. Tinjau ulang keamanan bahan kimia untuk kolam renang. Sesuaikan tingkat pH kolam renang. Pilih produk klorin pengejut yang sesuai. Berikan dosis klorin yang agak berlebih. Cek kolam kembali keesokan harinya. Sikat dan lakukan tes secara harian. Sedot alga –alga mati. Bersihkan penyaringnya.