And here is what i found.
What causes the veins on the bowl to do that? From the pics you can see there isnt any major damage to the impeller. The edges need to be cleaned up but the impeller is in great shape. I started to have sum cavatation towards the end of the season and was certian the impeller was shot. Would the bowl being in the shape it is cause the cavatation? Checked my impeller to wear ring clearence and was expecting it to be way off. When we set the pump up we went with .0031 and its now at .0037. First time using the ULTIMATE WEAR RING, so i have no idea if losing .006 over three seasons is normal. I would think its ok, but in this game u never know.