OK, Dug a trench about 16' x8" on thew low side, filled with qp, compacted with a plate compactor, used foam cove and smooth out the sand as best I could.

By the way, the plate compactor was great with the qp, however, it was unuseable in the sand, kept gouging the sand, I'll try a sod roller.

Question is, can I use pieces from the old liner over the sand for additional protection for the new liner? After this repair, im seeing more pebble/rocks than I want.

Thanks
Anthony