Ok, so I removed the relief valve. Found the bottom O-Ring blown and some metal shavings. Not exactly clear on where the metal came from. I am assuming one of the pump failures sent some metal to the control valve. Then caused relief valve failure. Rebuilt the control valve and inspected closely. Ordered new relief valve. Going to put a kit and end cap on one of the hydraulic pumps and change the return filter. I appreciate all the help.