pipes from pumps

[fishy hands]

my pond is pumped unfortunately .my fish go under and over the pipe work from the pumps. is there any way to weight them down ,as i saw one koi get stuck for a moment going under 1st post in the room any help much appreciated. thank you

[Brek]

Most ponds are now bottom drain designs which neatly circumvents your issue, As i am new to this hobby not sure you should really listen to me , I would guess the issue would be how much speed is involved in it swimming under the pipe and how stupid your koi are. I would think that most fish are adept at avoiding submerged objects or there would be a distinct shortage of fish in the sea/river. The only issue then being the speed of impact with pipe, before I got my pond built around bottom drain design I too had a pipe trailing out of pond, fretted every time they swam under it, I have to say after 6 months none were any the worse for wear.

[fishboyfishy]

Could you not make a pipe from solvent weld that tucks neatly into the corner. then connect this to the pump either with a short length of hose or screw type fitting.

[Casper Chapman]

Yep, solvent weld is the answer.
You either kink it to run on the bottom, which can collect debris, or raise it so fish can swim under.