Koi jump out with water movement???

[ralph50]

Everytime I install a power head or any filtration device at least one koi always jumps out.

They seem to like swimming against the current and then jump out.

I'm thinking of making like an 8 foot pvc diffuser and installing it along the bottom.

The pond is roughly 8 feet x 3 feet X 2feet deep or 375 gallons.

Thanks