Large number of older homes have water leakage problems

In addition to standalone homes, row houses, a large number of homes, apartments have water leakage problems
In older buildings,galvanized iron (GI)/steel/ metal pipes were used for water supply.
After some time, these pipes are getting rusted and the water is leaking to the house below.
Usually the family in whose house, the water is leaking will not pay any money for repairs, they will demand that the home owner pays all the expenses.
They will also circulate photos and videos of the water leaking to force the home owner to take action.It is very inconvenient because the family members cannot use the bathroom when the repairs are being carried out