Give it time - it will take a few weeks for the skimmer to 'break-in' and you will find that some strange things happen during this time. Either nothing will be happening or the cup will fill with water - eventually it will even out.came home and the skimmer cup was full of water. Instructions say to adjust until the bubbles are at the bottom of the cup. It was slowly building up last night and this morning they had just reached the top, then I come home and it's full of water?
Any suggestions?