I went inside my tank today for the end of the season thorough cleaning and inspection. Paint still looks great and no rust yet except around the hatch cover. When I made my way down towards the sump I noticed that at least 3 paddles towards the back of the tank were obviously bent. The bends were within an inch of the welds on the shaft. I am not sure how long they could of been like this because I never noticed any performance or mixing change. I tried to put my biggest adjustable wrench with a 14' handle on top of the paddle to try and bend it back and I was barely able to move it. I did bend it back a little but not all the way. I can't believe as strong as these paddles are they were able to bend.
Is it common for this to happen? What is the best way to bend the paddles back? I have always used 100% wood mulch from Profile Products. I load it 1/2 a bale at a time, am I doing anything wrong? I did the pressure relief test for the hydraulics and confirmed the pressure when the paddles get stuck are at 2300psi.