The law does not mandate any particular arrangements among condominium owners. You need to look to the rules that govern the use of common areas in your particular condominium building or complex. These rules are often called Covenants, Conditions, and Restrictions (CC&Rs). For more information on CC&Rs, see Understanding Homeowners' Associations and CC&Rs.

You can also call your city or county health department to ask about pertinent health regulations. If a health regulation does prohibit doggy paddling, then submit a copy of the regulation to the dog owner and the homeowners' association with a written complaint.