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#558532 05/19/23 12:16 PM
Joined: Jan 2023
Posts: 6
OP Offline
Joined: Jan 2023
Posts: 6
I am considering using Aluminum Sulfate as a phosphate binder to try to reduce my algae problems. My main problem is with Chara that has taken over my .66 acre pond. My pond was constructed with a poly liner and is just over four years old. Water clarity is good. The bottom is now covered with sludge and Chara. Has anyone with a similar situation had success with Aluminum Sulfate? My deepest section is 8 ft deep and the pond averages 4'.

Joined: Jan 2009
Posts: 27,962
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Field Correspondent
Field Correspondent
Joined: Jan 2009
Posts: 27,962
Likes: 644
Yes, that will work, but you should kill the Chara first and let it decompose to get the most amount of dissolved P in the water before you use Alum to bind it. You will have to mitigate the pH drop with hydrated lime.


3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).
1 member likes this: FishinRod

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