I have the same and feel the same. I guess mine is long overdue so I'll start cleaning it and the pump now. Hopefully it'll improve the performance as I'm disappointed in it (if so then I'll be disappointed in myself for not cleaning it more often). I have a mag 7 pump running the skimmer. How do I clean it? Hope to get a reply soon since I'm about to partake in the cleaning right now.artoledo said:You know, i was thinking of cleaning my skimmer prior to the start of this thread, and when i read how many people cleaned it out so frequently made me look in my sump. Man it is so disgusting in there! I have a thick coat of dust looking stuff on the bottom of my sump and skimmer and powerhead are looking nasty! I feel terrible about this now!