Did you add Borax ( 20 Mule Team) or Baking Soda (Arm & Hammer)?
Shock level for 70 CYA is 20 - you need to get it there and keep it there until you have less than 0.5 CC, and lose no more than 1 ppm FC between sundown and sunup, then one extra day.
Run filter 24/7 brush the whole pool daily.

Don't put the algecide in, you'll likely get foamy cloudy water.