Did a 15 gal H20 water change on my 120 and turned off my skimmer via my Apex after the H20 change i turn the skimmer back on 15 mins later i remove my front cover and see my skimmer overflowing all the crap into my sump !! lesson learned to clean out the collection cup before H20 change in case this happens again.. Guess ill be doing another H20 change what a drag !! . . .
