Being new to hydraulics, I have a couple of questions regarding hoses. I assume from what I have learned about hydraulics recently that some of the hoses are not under much pressure and some are under great pressure. From the picture of my splitter can someone tell me which of the lines are under the most pressure and which are under the least? At what point do they need replaced? Is minor cracking acceptable? I also just paid $36 for a 24" 1/2" hose. I feel like I got ripped off. Did I?