That's the stuff. Keep adding enough to get the pH to over 11. Wear the appropriate safety gear, goggles, etc. as the stuff is nasty if on your skin or eyes. I'm guessing have enough to put in the pond at the rate of at least 300# per acre foot of water. So, I would start with 1,800 pounds and have more on hand if the pH doesn't climb high enough. Keep it dry and you can return what you don't use.
If you want to fine tune the amount you need start reading the posts in the beginning of the thread, it tells you how to do it there.
Last edited by esshup; 04/21/21 06:05 PM.
