Pond Boss Magazine
Newest Members
Bearman, awlakes, mountainman1, 5points, Engr. Mahfuzur
15489 Registered Users
Forum Stats
15490 Members
36 Forums
35704 Topics
486492 Posts

Max Online: 1039 @ 03/28/13 02:44 PM
Top Posters
esshup 24027
Cecil Baird1 20043
ewest 19377
Dave Davidson1 13432
Bill Cody 12398
Who's Online
18 registered (NEDOC, LeighAnn, Hammertime75, DADx4, Quarter Acre, Cisco, Brad C, Nate W, Matzilla, SetterGuy, BrianL, Theo Gallus, Pondwish, FireIsHot, Dave Davidson1, Redonthehead, jludwig, Bob-O), 236 Guests and 470 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
#120724 - 06/02/08 01:34 PM Adding gypsum to pond
wazzle Offline

Registered: 07/24/07
Posts: 25
Loc: Southern Illinois
The gypsum I can purchase locally is in 40 pound bags and is of a pellet form. I added 200 pounds to a pond that is less than 1/2 acre but when added, the pellets sink immediately. Is this a problem or will it still dissolve and work to clear my muddy pond. I thought about dissolving the pellets in 5 gallons of water and pouring that mixture in the pond.

#120805 - 06/03/08 08:48 AM Re: Adding gypsum to pond [Re: wazzle]
Theo Gallus Online   content

Registered: 05/14/04
Posts: 12369
Loc: Central Ohio

Non carborundum illegitimatus!
(totus res in temperantia)

I subscribe, but won't pay Photobucket.

#120810 - 06/03/08 09:08 AM Re: Adding gypsum to pond [Re: Theo Gallus]
ahvatsa Offline

Registered: 10/02/04
Posts: 352
Loc: Poth/McCoy, Texas
You can broadcast it from shore with wind or use a small boat and troll motor in prop wash. We have used several tons. You will need 10-15 more bags to get improvement. Takes a week or so... give it some time.

#120828 - 06/03/08 11:29 AM Re: Adding gypsum to pond [Re: ahvatsa]
Agent Offline

Registered: 11/03/06
Posts: 45
Loc: Hockley, TX
We put most of ours in eroded areas and let the water wash it into the pond. Took about a month, but worked.
Subscriber, but without the ability to link to my Pond Boss Pic!

#120846 - 06/03/08 02:05 PM Re: Adding gypsum to pond [Re: Agent]
WaterWizard Offline

Registered: 11/08/07
Posts: 227
Loc: San Luis Obispo, CA, USA
I posted this question on another forum but maybe this one is more appropriate. Does anyone know any published application rates for aluminum sulphate?
Richard Dennis
EP Aeration
(800) 556-9251

#120864 - 06/03/08 07:36 PM Re: Adding gypsum to pond [Re: WaterWizard]
Eastland Offline

Registered: 04/20/03
Posts: 1039
Loc: Dallas TX
Go here for both alum & gypsum application rates :


#121398 - 06/09/08 01:35 PM Re: Adding gypsum to pond [Re: Eastland]
wazzle Offline

Registered: 07/24/07
Posts: 25
Loc: Southern Illinois
My question is really concerning the pelletized form of gypsum. Is that the only way it comes? I was concerned that it sinking immediately may not be doing the job. Others have mentioned it floating on the surface for a while before it sinks. Does it work either way?

#121412 - 06/09/08 03:15 PM Re: Adding gypsum to pond [Re: wazzle]
burgermeister Offline

Registered: 02/27/05
Posts: 4025
Loc: Houston, Tx.
You will be much happier with aluminum sulphate. There are several formulas. Just give it some time(2 wks..to work, before re-assessing. Make a slurry with 1 tablespoon per gallon, that gives you a 1/250 ratio, then add 1, 2, 3, etc. tablespoons per gallon of the slurry to gallons of fresh water(you can use 1 teaspoon per quart and be close). The least amount to settle the solids is the amount to use. However much alum you use, add 40% that amount of hydrated or quick lime to maintain the ph. If you need to raise the ph a little, add more lime. I used 150# alum, followed by 100# lime in 3 increments about 2 wks. apart. My water went from 12 inch muddy visibility to 4 ft. clear in a month. Then slowly added fert. til now I have a nice green 24 inch bloom. This took about 3 months total. That is for about 1 million gallons.

#329023 - 04/05/13 01:06 PM Re: Adding gypsum to pond [Re: WaterWizard]
Cherri106 Offline

Registered: 04/05/13
Posts: 1
Loc: Indiana
Has anyone used liquid gypsum to settle the muddy water in a pond?

#329025 - 04/05/13 01:38 PM Re: Adding gypsum to pond [Re: Cherri106]
esshup Offline
Field Correspondent


Registered: 01/26/09
Posts: 24027
Loc: Grovertown, Indiana

Welcome to the forum. I haven't used it. Where do you find it in quantity in Indiana?

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

#331477 - 04/21/13 09:22 AM Re: Adding gypsum to pond [Re: wazzle]
Rainman Offline
Field Correspondent
Hall of Fame


Registered: 06/06/07
Posts: 6935
Loc: St Louis, MO area
Cherri, I wasnt aware gypsum came in a liquid form. When it comes to Gypsum working to clear suspended clay, success is around 50% whereas alum/lime is 100% effective.



Today's Birthdays
4D Ranch, gunsmoke
Recent Posts
New to aeration, need help choosing system
by Hammertime75
Help Stocking my Pond in Central Virginia
by Quarter Acre
fhm question in 4 yr old pond
by SetterGuy
by Dave Davidson1
10:17 AM
A Lighthearted Question for TJ
by Bob-O
10:13 AM
Chronicles of stocking Hybrid Striped Bass......
10:10 AM
No bass recruitment in our lake??
by DavidB
09:30 AM
Sourcing alternate genetics in Iowa
by Acoursey
08:58 AM
Rotenone applicator in south central Kansas
07:38 AM
how to watch podcast and when is it?
by jludwig
07:32 AM
Newly Uploaded Images
My Best Longear so far
Help ID this fish
Crayfish monster.
Turkey Pics
Question on pond draining

2014 POND BOSS INC. all rights reserved USA and Worldwide