Whether it has plans to take measures to enhance the prevention of ld including taking and testing more water samples from cooling tower systems of buildings for testing , enacting legislation to require owners of such systems to cleanse and disinfect their facilities on a regular basis , etc , so as to safeguard public health 有没有计划采取措施，加强预防退伍军人症包括增加抽验大厦水冷塔系统的水办立法规定该等系统的拥有人须定期清洗其系统及进行消毒等，以保障市民健康？
If you still feel necessary to install a filter , make sure the one you select from firms providing handy operation and maintenance methods and supported with good after services . regular cleaning and replacement of filtering element and other consumables are the necessary way to avoid secondary contamination of drinking water , which might be harmful to health 如果您还是要装滤水器的话，应选择可提供完善操作维护方法及良好售后服务的厂商购买，定期清洗或更换滤心等耗材，才能避免饮水遭滤水器的二次污染，反而有害身体健康。
With the endorsement of the advisory committee on the quality of water supplies , strategies and implementation plans were prepared to build up confidence in direct consumption of water from taps . a voluntary fresh water plumbing quality maintenance recognition scheme was launched in july to encourage proper maintenance of internal plumbing systems and regular cleaning of water tanks in buildings 为建立市民直接饮用自来水的信心，水务署在得到水质事务谘询委员会同意下，拟订了有关策略和实施计划，并于七月推行自愿参与的食水系统优质维修认可计划，以鼓励用户妥善保养楼宇内部水管系统和定期清洗储水箱。
