Wow!
Did not expect such a discussion- but really like the enthusiasm that goes beyond my scientific knowledge!

I do know that my pond water is very dynamic and all pond enthusiasts experience these concerns. This is a true and continuing education that this Pond Boss Forum provides all of us!

Now- I have slowly added 200 lbs of alum by mixing in 5 gallon buckets and distributed across pond surface with my pond boat an electric motor to disperse. PH remains around 7.5 and alkalinity of 40-50. Considering Phosclear as it contains the buffer. Should I wait until the spring to continue or proceed in a few weeks?

Thanks for the active replies!

Al Allison