Possible to lose Alum's charge? - 07/21/15 03:54 PM
Will post pictures soon. We have a 1 surface acre/8 acre feet pond that we have filled up with well water. Here in central Texas, we had a hellova spring with the rain and we got a lot of runoff which caused colloidal clay/iron buildup in our pond. We have no fish in the pond
Visibility was about 2 inches. Our alkalinity was about 240, pH of 8.2. We dumped in 200 gallons of 70% sulfuric and 1500 lbs of alum and dropped our pH 1 pt and got it to clear to about 18 inches visibility.
We're putting in another 1200 lbs today and that should finish it off and completely coagulate any suspended particles.
As we pump it out for irrigation and replace it with well water, will we lose the charge holding together the clay on the bottom? Will it only re suspend if it is turbid? The bottom of the pond is about 30 feet so it will be a challenge for anything to stir that up. (outside our diffuser). If so, any recommendations on how to remove all the crap on the bottom? Giant pool vaccuum?
Thanks!
Visibility was about 2 inches. Our alkalinity was about 240, pH of 8.2. We dumped in 200 gallons of 70% sulfuric and 1500 lbs of alum and dropped our pH 1 pt and got it to clear to about 18 inches visibility.
We're putting in another 1200 lbs today and that should finish it off and completely coagulate any suspended particles.
As we pump it out for irrigation and replace it with well water, will we lose the charge holding together the clay on the bottom? Will it only re suspend if it is turbid? The bottom of the pond is about 30 feet so it will be a challenge for anything to stir that up. (outside our diffuser). If so, any recommendations on how to remove all the crap on the bottom? Giant pool vaccuum?
Thanks!