Does the property have the right to restrict the purchase of water?

No right. Property has no right to restrict owners from buying water, and it is forbidden to violate civil liberties. Owners can defend their rights by suing.

Legal basis:

Article 119th of the Civil Procedure Law of People's Republic of China (PRC) * * * Prosecution must meet the following conditions:

(1) The plaintiff is a citizen, legal person and other organization that has a direct interest in the case;

(2) Having a clear defendant;

(3) Having specific requests, facts and reasons;

(4) It falls within the scope of civil litigation accepted by the people's court and is under the jurisdiction of the sued people's court.