I had one of those. They are prone to develope pin hole leaks. Happened twice to me. First time it was with the average paint job that come on the tank ( which I purchased used). Repaired the tank per instructions from the manufacturer, applied a new paint job, 3 color with ghost flames and about 2 years later it leaked again and ruined that paint job. Loved the tank couldn't afford the paint.
Pic of mine after first repair and repaint,
