Dear Mrs. Finda, Warm greetings from Swiss-Belhotel Kendari. Thank you for taking the time and giving your rating for Swiss-Belhotel Kendari. We apologize for the inconvenience you experienced, we do regular pool water treatment to keep the water clean, if you wish, our staff will contact you soon to offer swimming on a different day, If you need any assistance, please do not hesitate to contact us again. Best regards, Swiss-Belhotel Kendari Management.