Sixline in overflow!!!!!

[hockey nut]

Yup, I guess I startled him somehow and he jumped into the overflow. He is still in there as we speak. I tried to get him out for hours tonight. Took off the micron bag just in case he can fit in the plumbing that drains into the sump.Turned off the return pump, tried to use a net which just won't fit with the pipes in the way. Then I plugged up the intake pipe and filled the overflow up to the top hoping he would jump 1 inch over the overflow into the tank but to no avail. Also tried to catch him near the top too.
Murphy's Law...... the one small opening in the overflow cover ....is the same small hole the fish always seem to find.

Anybody have any suggestions? Remember there is not very much room in those overflows.

Thanks