I just got done using the liquid form and my water is probably 75% better.
Last year we had a drought and a steep part of my watershed area got burnt and the grass died. This winter/ fall we had a lot of rain and a few gully washers. This proceeded to erode ground and empty a lot of the orange clay into the pond. The 3/4 acre pond turned a muddy brown color that I just couldn't live with anymore. Clarity was at around 6" at best, and I feared the fish could not hunt.
After reading about alum on here I contacted my pond guy and all he uses is liquid. He reccomended I use 16 gallons. I set up the boat with an electric trolling motor and slowly poured the liquid into the prop wash. I'd then go back at the same pass with powdered lime and do the same dumping it in the prop wash.
The first treatment did about a 20% clearing so I went back and did it again and it's about 75% and getting better every hour. I paid $8 a gallon for the liquid aluminum sulfate. I killed one LMB but no other fish seem to have been affected.
