very low suction in pool vacum port

[AZWildcat24]

Hi. I recently noticed my pool sweep wasn't moving very much. I have a DE system and cleaned the filters and my pressure is about 12, yet I still could not get the pool seep to move. I then moved the sweep to the skimmer and it works fine.

Could I have some debris or something clogging my vacum port? I can't see anything, but who knows how far down the line. Any suggestions on how to fix this problem?

[whowho]

Some times the lines have an inline filter that gets clogged. Check to make sure you dont have a dirty filter in the line.