Thanks for the reply. Current alkalinity is 40. 48 tons of ag lime was applied in early August. High phosphorus levels have been confirmed in water test in past months but current phosphorus levels are not known. Will test phosphorus level soon. Blue/green algae tested positive in August and paint like slime observed in shallow cove.

Applied 50 lbs of Alum in 50 gallons of water as a test. PH remained stable at 7.5. Will proceed after phosphorus test.
Thanks Al Allison