The pool remains blue and clear. Did use flocculent again and vacuumed to waste. Very little, but some, algae fell out and was vacuumed out of pool.
Phosphate kit arrived, > 1000 ppb in the pool. Ground water must also have phosphates as "softened well water" also has > 1000 ppb. Plan to control algae with FC for the remainder of the month as I am reluctant to cloud pool with treatment since we can finally use the pool. Seems like it will be a vicious cycle with the source water as it is.