We just installed an Intex 12x24 Ultra Frame pool which came with a combo Sand Filter and Saltwater system. I've got the pool all up and running but there appears to be an issue with the pump that I've been unable to put my finger on. The behavior is the pump appears to almost be breathing sucking the water in and pushing water out. When the water is sucked in, the top of the leaf trap leaks water while it appears to be relieving pressure. I've tried relieving the pressure by loosening the screw top on the leaf trap. All of the youtube videos I've seen of running systems do not show this behavior . . . . and it leaves a watery mess under the pump, too! 
Here's a quick video of the pump in operation:
Thanks for any help you'll can lend . . . . . .
Scott
Here's a quick video of the pump in operation:
Thanks for any help you'll can lend . . . . . .
Scott