<a href=showthread.php?s=&postid=6555450#post6555450 target=_blank>Originally posted</a> by Sindjin
I havent done it in a few weeks thats why it was so bad.
In addition, Im running a filter sock on my secondary overflow while my primary directly feeds my skimmer. I chamge the sock every 2 days.
But I didnt just blow off the rocks. I also blew them out...sticking the end in various holes while pumping the baster.