power steering problem
 

1995 Barchetta: replaced worn power steering pump, and since have experienced the hoses blowing out. Too much pressure? have replaced hoses thinking they may be old (since we purchased boat used). Running in the driveway with water hose there is no problems....until we get out on the lake and open 'er up. Next thing you know there is PS fluid spewing everywhere! Missed 2 weekends boating because of this and have put tons of hours into repairing....any suggestions? Please reply quickly as we would love to get this resolved and get out on the lake this weekend. Is there some sort of valve that controls the pressure? or could we have gotten a defective replacement pump?