How to change washbasins for owners in property news articles?

1. First, the maintenance team investigated all the owners' washbasins and recorded the number and location of washbasins that need to be replaced.

2. Then the washbasin and related accessories were purchased as planned.

3. Then, before replacing the washbasin, notify the owner through announcements and WeChat groups. Tell him to replace the washbasin and remind him to pay attention to personal and property safety during the replacement.

4. Then, within the date and time specified in the notice, the maintenance team went to the owner's home to dismantle and clean the old washbasin and install a new washbasin.

5. Finally, after all washbasins are replaced, clean up the site to ensure that no garbage or waste will be left.