Green Pool Cleaning Bali: How to Fix & Prevent a Green Swimming Pool
A green pool in Bali is one of the most common pool problems reported by villa and hotel owners. The green color comes from algae — microscopic organisms that explode in growth when chlorine levels drop, pH becomes unbalanced, or the filtration system is not keeping up with demand. In Bali's tropical climate, a pool can turn visibly green within 48–72 hours if left unattended, particularly during the rainy season when heavy downpours dilute chlorine and shift pH rapidly. The green pool cleaning process requires a specific sequence of treatments to be effective. The first step is super-chlorination, also known as shock treatment. This involves adding 3–5 times the normal chlorine dose to kill the algae population quickly. The pool must run its filtration system continuously during this process. After 24 hours, the water typically changes from bright green to a milky white or cloudy grey color — this indicates that the algae have been killed but their remains are still suspended in the water. The second phase of green pool cleaning involves filtering and clarifying. The filter must be backwashed every 6–8 hours to remove dead algae that clog the filter media. Adding a flocculant helps clump fine particles together so they either sink to the bottom (to be vacuumed) or get captured by the filter. This phase typically takes 2–4 days. During this time, the water chemistry must be monitored daily and adjusted as needed. The pool should not be used for swimming until the water is clear and all chemical parameters are back within safe ranges. Preventing green pool recurrence requires consistent maintenance. In Bali, weekly professional service is strongly recommended to keep chlorine levels stable, pH balanced, and filtration systems in good working order. Surya Jaya Teknik specializes in green pool cleaning and restoration across Bali. Our team responds quickly to urgent cases and can typically restore a green pool to crystal clarity within 3–5 days. Contact us via WhatsApp for immediate assistance.
