Late summer phytoplankton bloom from ag run off in my 8.7 ac pond in Chester County S.C.(Built 2007). Secchi disk reading 12" +/-and confirmed blue -green algae. Started treatment with running aerated well water and applying 9 gallons of Cutrine Plus to reduce algae. I have a recommendation to apply an Alum application to reduce accumulated phosphorus-but do not have any experience with Alum for phosphorus reduction.
Need help and advice as to applying Alum for this concern. Can I apply Alum in dry form? Should I dilute Alum in water and then apply in a liquid form? Should I apply Alum over a period of several weeks to reduce risk of PH drop? I understand that Alum application has risk of serious PH reduction and possible fish kill if application is too heavy!
Any help and advice will be appreciated!
Al Allison
