This is my 2nd pool closing and I am not happy with the pump not removing all water from the pool cover. I have a little giant pump (attached is a picture), which it suppose to activate at 2 inch of water, but it looks like is activating above 2 inches of water. I would like to know if there is any way to adjust the water sensor/float. Attached is a picture of my pump and the water accumulated. Is not a lot, but enough to freeze into ice, which will add weight to my cover and preventing the pump from working when the water freezes. Any suggestions?