Can your pump be too big? I have a 1ph 1.5hp pump. Does a great job moving the water. It moves the water quite a bit; water is swirling over a large area when the pump is on. It actually creates a little current streaming back into the skimmer. I have a feeling this pump is over sized for my pool. I just want to make sure it won't damage something down the road. My filter tank is big. I have a pressure side cleaner, so tank pressure goes up to about 19 with the cleaner attached, but still below the "dirty" level.
PS, I also have 2 waterfalls, but even with everything running it's still moving the water vigorously.