If you've been too busy to clean the pool for a few weeks, you may just find that it has turned green or black.
Otú ọ dị, ọ bụrụ na Gbanwee gị anọla n'ọdụ ụgbọ mmiri ahụ ruo oge ụfọdụ, ma ọ kaghị ike, ọ nwere ike ịmịkọrọ ya na ihuenyo ojii ma ọ bụ oyi na-emechi ya.