Ummm.... this is through 3/4" schedule 40 PVC with at least two right
angles. The augers I've seen are for much larger sewer drain pipe and
will not fit inside 3/4" PVC. Anything that can drill through sand

Ouch! Unless you are trying to fish a phone line, you (might/might
not/want) WILL dig it all up and go to 2" with 45 degree bends and bevel the
inside edges. Once above ground you can break out to pull boxes.

You have my sympathy.