How do I clean out used hydraulic hoses?

[tommu56]

The hyd. motor on my centrifugal water pump can only pump water in one direction so I guess that's why it has a check valve.

If the motor on the auger in question is reversible that's good. Won't really matter how the hoses are hooked up, and you can always reverse the auger if it hangs a root and the 3ph can't raise it up out of the hole.

The reason your pump is that way if you spin it inreverse the impeller will un screw off shaft.
tommu