High water table

Hello all want to say thanks for having me in the forum :-) I have an in ground pool that needs repair, The concrete deck, the coping, the steps are all in very good shape, dont know how long since pool has been in operation, but it does need repairs to the vermiculite bottom i do concrete and masonry work so am sure i can fix this but my issue is when i pump out the pool it fills back in about 2 feet i pumped out in fall to do some of the repairs bottom of hopper was in good shape but a little water pumped in then about 8 inches but now a crack in bottom of hopper that needs repair how do i keep this water out of here to get the liner in and water in it to hold back water


thanks hope someone has some ideas