I just bought a 2014 OHT#3 ...taking it out on its first voyage...I did have to replace all the connections and air hose with PUSH TO CONNECT and stiff hose ..The trailer only had 1000 miles use on it but the hoses had dry rotted.. Cost about $80 bucks and super easy ....let me know if I can be of service . Ultimate Trailer 800 499 1694 speak with CHRIS or Sara in Service for advice...they're very helpful even if you bought it used.