seriously, drain the pool and refill it.
If you have an intex pool you are going to drive yourself insane trying to clear it.
LIke hotpoolmom, i mean frustratedpoolmom said, the filter system isnt all that great on those pools, and your going to put in so much effort and chemicals and still not be happy.
options
1. Drain, refill, balance chemistry, SWIM AND ENJOY THE POOL
2. Add bleach, run filter, clean filter, add bleach, cry, pull out your hair, add bleach, tell your son he has to swim in the bathtub instead.
3. pick up large object, throw it at pool.