Our above ground pool vacuums are not working properly. They are not vacuuming hardly at all. The manual one just floats out of the skimmer after a few minutes and the automatic one hardly moves at all. We have replaced all the hoses so they are all new and are not leaking the pump seems to be working properly at 27 lbs while it is filtering. Does anyone have any ideas why this could be happening and how we might be able to fix it. Thanks. :confused: