Complicated Parapneumonic Effusion

The goal of this observational study is to learn if saline results in improvement for patients with infection of their plerual space. The main question it aims to answer is: What is the time to chest tube removal? Do these patients after need to escalate to fibrinolytics? Do these patients after need to escalate to surgery? Participants will: * Receive receive saline into their pleural space through an existing chest tube * If they fail to improve, which will be determined by fluid size after treatment or signs of persistent infection, they will receive fibrynolytics through an existing chest tube * If they fail to improve, which will be determined by fluid size after treatment or signs of persistent infection, they will be referred to surgery.