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#503021 - 03/12/19 09:10 PM alkalinity & how much lime?
mtneer99 Offline


Registered: 02/14/18
Posts: 13
Loc: Southerland VA
I've tested and retested our pond water, and compared it to tap.

our Alkalinity is about 2.2
yeah I figured it was acidic before testing but a little surprised after testing.

anyway for 1 acre pond how many tons AGlime?
thanks

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#503024 - 03/13/19 12:35 AM Re: alkalinity & how much lime? [Re: mtneer99]
Snipe Offline


Registered: 10/26/18
Posts: 216
Loc: NW Kansas
Wow! That sounds like battery acid.. If you are comparing to tap water, what do you show for it?
Maybe I'm confused here but are you testing pH??? or true Alkalinity??
Hydrochloric acid, battery acid is about 0.. Vinegar is about 2. My tap water is roughly 6.2-6.5..
I should ask what you are using to test with, also?


Edited by Snipe (03/13/19 12:43 AM)
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#503045 - 03/13/19 09:52 AM Re: alkalinity & how much lime? [Re: mtneer99]
DonoBBD Offline


Registered: 06/13/12
Posts: 1975
Loc: Ontario, Canada, Eh.
Yes a true PH of 2.2 should burn you.
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#503062 - 03/13/19 02:46 PM Re: alkalinity & how much lime? [Re: mtneer99]
ewest Offline
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Registered: 03/08/05
Posts: 19746
Loc: Miss.
I have never seen a pond with a 2.2 alkalinity. The lowest was an 8.

Assuming its around 8-10 I would start with 3 tons and see how it reacts.


Edited by ewest (03/14/19 11:05 AM)
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#503083 - 03/13/19 07:44 PM Re: alkalinity & how much lime? [Re: mtneer99]
Snipe Offline


Registered: 10/26/18
Posts: 216
Loc: NW Kansas
I'm going to assume beings nobody is saying it, that you are talking ppm?? What is the target? 50? 150?
Just trying to learn something here.


Edited by Snipe (03/13/19 07:44 PM)
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#503085 - 03/13/19 08:32 PM Re: alkalinity & how much lime? [Re: mtneer99]
Bill D. Offline


Registered: 10/19/14
Posts: 5784
Loc: Boone County Illinois
IMO the discussion seems to be confusing pH with alkalinity. My understanding is PH is the amount of free hydrogen ions in the water (acid) and alkalinity is the amount of carbonate and bicarbonate in the water which equates to the ability of the water to neutralize the acid (tie up the free hydrogen ions). To know the pH it needs to be measured directly. An example, last time I checked, my pH is 8.1 and my alkalinity is 350+.

My thought was start with 3 or 4 tons of Ag lime and also do the watershed if possible.

Not a pro...just my understanding. I'm with Snipe....looking to learn on the subject


Edited by Bill D. (03/13/19 08:57 PM)
Edit Reason: Clarification
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#503089 - 03/13/19 09:44 PM Re: alkalinity & how much lime? [Re: DonoBBD]
mtneer99 Offline


Registered: 02/14/18
Posts: 13
Loc: Southerland VA
Originally Posted By: DonoBBD
Yes a true PH of 2.2 should burn you.


remember we are NOT talking about PH
rather the alkalinity
alkalinity> ability of PH to neutralize acids

I tested my parents house (3.5 hours north) well water and the alkalinity was off the charts 16+


so I know this pond has low alkalinity, however the water is not deadly LOL there are living organisms in there doing fine


5+ tons, is what I'm thinking
maybe 10 no kidding

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#503090 - 03/13/19 09:48 PM Re: alkalinity & how much lime? [Re: Bill D.]
mtneer99 Offline


Registered: 02/14/18
Posts: 13
Loc: Southerland VA
Originally Posted By: Bill D.
IMO the discussion seems to be confusing pH with alkalinity. My understanding is PH is the amount of free hydrogen ions in the water (acid) and alkalinity is the amount of carbonate and bicarbonate in the water which equates to the ability of the water to neutralize the acid (tie up the free hydrogen ions). To know the pH it needs to be measured directly. An example, last time I checked, my pH is 8.1 and my alkalinity is 350+.

My thought was start with 3 or 4 tons of Ag lime and also do the watershed if possible.

Not a pro...just my understanding. I'm with Snipe....looking to learn on the subject


perfect! yeah thats what I'll start with

PH is variable throughout the day, thats why Alkalinity is tested because it's constant, but I do want to get some readings just to see how bad it is.
So I'll buy a kit to check it, and post the results

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#503092 - 03/13/19 09:53 PM Re: alkalinity & how much lime? [Re: mtneer99]
mtneer99 Offline


Registered: 02/14/18
Posts: 13
Loc: Southerland VA
Originally Posted By: mtneer99
Originally Posted By: DonoBBD



I tested my parents house (3.5 hours north) well water and the alkalinity was off the charts 16+




region has limestone abundance everywhere, mowing the lawn there I hit & picked up my fair share of limestone rocks

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#503093 - 03/13/19 09:54 PM Re: alkalinity & how much lime? [Re: mtneer99]
Mike Whatley Offline


Registered: 04/22/18
Posts: 730
Loc: Louisiana
I'd go at least 5 tons for starters. You can always add more once it's settled. I don't think you can add too much, tho, so go with your gut.
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.10 surface acre pond, 10.5 foot deep. SW LA. The epidomy of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!

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#503094 - 03/13/19 09:56 PM Re: alkalinity & how much lime? [Re: mtneer99]
Mike Whatley Offline


Registered: 04/22/18
Posts: 730
Loc: Louisiana
I'd go at least 5 tons for starters. You can always add more once it's settled. I don't think you can add too much, tho, so go with your gut.
_________________________
.10 surface acre pond, 10.5 foot deep. SW LA. The epidomy of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!

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#503095 - 03/13/19 09:58 PM Re: alkalinity & how much lime? [Re: mtneer99]
mtneer99 Offline


Registered: 02/14/18
Posts: 13
Loc: Southerland VA
Originally Posted By: mtneer99
Originally Posted By: DonoBBD
Yes a true PH of 2.2 should burn you.


remember we are NOT talking about PH
rather the alkalinity
alkalinity> ability of PH to neutralize acids

I tested my parents house (3.5 hours north) well water and the alkalinity was off the charts 16+


so I know this pond has low alkalinity, however the water is not deadly LOL there are living organisms in there doing fine


5+ tons, is what I'm thinking
maybe 10 no kidding


this is the test kit I used made in Holland

https://www.amazon.com/Salifert-KH-Alkalinity-Test-Kit/dp/B00VC7U9J2/ref=sr_1_8?crid=5C8B2B0G0TMF&keywords=salifert+alkalinity+test+kits&qid=1552528601&s=gateway&sprefix=salifert+%2Caps%2C147&sr=8-8

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#503096 - 03/13/19 09:59 PM Re: alkalinity & how much lime? [Re: Mike Whatley]
mtneer99 Offline


Registered: 02/14/18
Posts: 13
Loc: Southerland VA
Originally Posted By: Mike Whatley
I'd go at least 5 tons for starters. You can always add more once it's settled. I don't think you can add too much, tho, so go with your gut.


yep thanks for the advice
I'll start with something like that and retest, and add more if I need it later

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#503097 - 03/13/19 10:50 PM Re: alkalinity & how much lime? [Re: mtneer99]
Snipe Offline


Registered: 10/26/18
Posts: 216
Loc: NW Kansas
Thank you for clarifying what you were testing there.. Appreciate that!
Here's another link to a test kit for a bit cheaper, also by Salifert..

https://cgi.ebay.com/ws/eBayISAPI.dll?Vi...d=1931207034001


Edited by Snipe (03/13/19 10:51 PM)
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#503108 - 03/14/19 11:07 AM Re: alkalinity & how much lime? [Re: mtneer99]
ewest Offline
Moderator
Hall of Fame 2014

Lunker

Registered: 03/08/05
Posts: 19746
Loc: Miss.
If it really is 2.2 alkalinity then go for 5 tons. Put it in and wait for testing every 2 weeks. You need to get to at least 20 alkalinity sustained.
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#503126 - 03/14/19 04:54 PM Re: alkalinity & how much lime? [Re: mtneer99]
Mike Whatley Offline


Registered: 04/22/18
Posts: 730
Loc: Louisiana
Last time I checked mine,it was around 30 on a litmus tester. My hardness is still crap tho. I'll probably add another 500# soon.
_________________________
.10 surface acre pond, 10.5 foot deep. SW LA. The epidomy of a mutt pond. BG, LMB, GSF, RES, BH, Warmouth, Longear Sunfish, Gambusia,Mud Minnows, Crappie, and now shiners!!...I subscribe!!

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