1. If the house is still under warranty, generally speaking, it is five years, then the property management company should be informed of the leakage and cracking of the drainage pipe in time, and the developer should carry out maintenance, and the losses caused should also be borne by the developer.

2. If the house has passed the shelf life and the public drainage pipe is damaged and cracked, causing water leakage, it is also necessary to notify the property company in time. Property management companies can apply for using public maintenance funds for maintenance, and if there are some losses, they can use public maintenance funds for compensation.

3. If the public drainage pipe leaks and someone changes the pipe privately, the relevant maintenance compensation responsibility shall be borne by the owner personally, and compensation cannot be made through the property management company.

Legal basis: Article 3 of the Measures for the Administration of Residential Special Maintenance Funds.

The * * * part of the house as mentioned in these Measures refers to the * * * part shared by the owner of a single house or the owner of a single house and its connected non-residential owners according to the laws, regulations and the house sales contract, and generally includes: the foundation, load-bearing walls, columns, beams, floors, roofs, outdoor walls, hallways, stairwells, corridors, etc.

The measures referred to in * * facilities and equipment refers to the ancillary facilities and equipment used by residential owners or residential owners and related non-residential owners according to laws, regulations and house sales contracts, generally including elevators, antennas, lighting, fire-fighting facilities, green spaces, roads, street lamps, ditches, pools, wells, non-operating parking garages, public cultural and sports facilities and facilities and equipment used in * * * rooms.