Koi pond pump Need help set up

Posting ID : A1068507929
Date Posted : 2015-08-19
Category : Farm Garden By Owner

Hello Koi enthusiasts.
Please HELP.
I am not new to setting up the pump, but I started having problem with with pump (weak pumping) ever since I installed the bottom drain for the pond. I thought there might be air leakage along the piping so I redid the piping. Then I thought it might be the pump so I upgraded the pump. The problem persists.
The pump pumps strongly when first I turn it on but then loses it's strength slowly. The water in the leave trap doesn't seem to fill up as I've seen before with my previous set up.
Please help....Call or text
my set up (pictured)

Some Other Postings