There ya go getting it narrowed down, wonder what is floating around in the tank?

I know this is hind sighted now, but I would suggest you disconnect the line at the tank end and clear it. Move that clear filter to the tank and attach the fuel line to the pump. Fuel flow from the tank thru the filter and then out the fuel line down to the pump.

Monitor and catch the crud back there, can clean it easy also. See what it looks like and how fast it builds up. That will determine your next move.

Happy hunting and good luck