Following TFP for raising alkalinity, I added 4 lbs of washing soda to my 20k in-ground pool. The initial bloom of cloudiness was expected. However, 3 days later the pool is still cloudy. Not sure what went wrong. Chemistry is mostly in balance.
I should also mention that there is a very fine silt on the bottom that can't be vacuumed by the robot because it comes right through the bag. So I'm going to vacuum to waste to get rid of the silt and hope the cloudiness goes away.