It is not shown in the video because i added it afterwards, but I have three bulkheads on different sides and at different levels in the barrel. Connected to the bulkheads are three pool filters.
I get clean water out of the bulkheads, but three can only keep up if the trash pump is running at idle.
I also can run it faster with the discharge hose shooting into some brush on the bank of my pond and it seems to leave the duckweed (and watermeal) on the bank and let the water run back into the pond.