Is there an express provision for cleaning the secondary water supply tank in Wuxi?

The state stipulates that the water tank should be cleaned twice a year. For the specific regulations of Wuxi, you can consult the local water supply company.

This is a rule, but generally speaking, residential areas are property management. It is difficult for informal property companies to ensure that water tanks are cleaned twice a year, and many communities do not even clean them once every few years.