There are other threads on this, but nothing with an answer.
It has been said that 1/8" - 1/4" pea gravel should be used as the bed for the latterals.
Found a place that sells it in small quantities by the bucket, 5gal @ $1/bucket. Seeing as I only need 50lb, will this work even though it's 3/8" pea gravel?
EDIT: Corrected incorrect rock size.