We have 2 American Products Skimmers on our pool and I have a question concerning the proper operation of the Weir Flap. The flap appears to be working fine as it is laying down when the skimmers are on and when the pump is off the flap goes closed – well almost. There is a molded stop on the skimmer housing top with a rubber stop on it that prevents the flap from totally closing (going vertical). This time of the year we get a lot of Oak Tree debris from the new leaves developing and the skimmers do a good job cleaning the pool however with the flap remaining partially open debris float back out. It seems to me that this flap stop is stopping the flap too so because it does not get to pointing vertical, it is slopped back to maybe a 10 o’clock position. Is this right? I was hoping to find a manual online but all I could find is a parts breakdown.