What is the maximum depth the PSP700 Premium 250w Submersible Pump will work to?

The PSP700 Premium 250w Submersible Pump is rated at IPX8, indicating that it can remain fully submerged underwater. With a cable length of 10m, the submersion must be less than that distance. The pump's maximum head, or the distance it can lift water, is 6m, though it should be noted that the flow rate at this depth will be significantly reduced.