Is it reasonable to charge for the maintenance of the sand sewer pipe in the building because of the long time and the seepage of iron and iron?

According to the relevant regulations, the maintenance and updating costs of the self-occupied parts and equipment of the house shall be borne by the owner. The cost of maintenance and renewal of residential parts and equipment shall be borne by the owners of the whole house according to the proportion of their own residential construction area.

* * * Residential parts, * * * equipment and public facilities are artificially damaged, and the maintenance and renewal costs shall be borne by the responsible person. The sewer blockage of the owner's own house belongs to the maintenance of the occupied part of the property, which shall be borne by the owner himself.