Another Green pool

Algae problems in swimming pool water.
Green (cloudy) water or slimy pool walls.
Black algae. Mustard algae. Pink or white pool mold.
alank
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My Pool: 24ft x 42 inch deep above ground
Location: Central Georgia

Another Green pool

Postby alank » Wed 18 Aug, 2010 17:42

Hi folks
I have read several of the "green pool" water threads with interest as I also have this problem. I feel confident I added too many chlorine tabs with stabilizer to my 24ft round above ground pool.

My CYA is 90, Free Chlorine is 3.4, PH is 7.8 and combined chlorine tested 0? I am using a Taylor K2006 test kit.
I just tested the first time this afternoon.

I have added a 1gallon of laundry bleach to my pool the last 3 days. I also have been dumping about 2" of water nightly since Sunday.

Any other suggestions?

Thanks in advance for any help.

Al


lbridges
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Another Green pool

Postby lbridges » Wed 18 Aug, 2010 17:52

With CYA at 90, the "normal" level of chlorine is 7 to 10 ppm.

This set of tables shows the chlorine/CYA relationship
floridapooltech
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Another Green pool

Postby floridapooltech » Thu 19 Aug, 2010 20:16

you most likely need to dump about 5 gallons of "laundry" bleach to achieve your desired FC level....or 1 jug of chlorine.
Florida Pool Tech is a Florida certified service company headquartered in Tampa, Florida employing the best technicians and installers in the industry! Vist us at http://www.floridapooltech.com

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alank
Pool Newbie
Pool Newbie
Posts: 4
Joined: Wed 18 Aug, 2010 17:28
My Pool: 24ft x 42 inch deep above ground
Location: Central Georgia

Another Green pool

Postby alank » Fri 20 Aug, 2010 11:21

Thanks for the reply's. I really have learned a lot about pool water chemistry from posts of the experienced folks on this forum. I have been very lucky not to have caused this problem in the past 8 years of owning my pool. I never heard of CYA until last week reading this forum. I found a dead bat in my skimmer and the FC was very low so I overdosed the water with the chlorine + stabilizer tabs.

Anyway
I dumped about 6 inches of water from the pool yesterday and refilled. I plan to test today and have 5 Gal's of bleach to bring up the FC.


Again...thanks
Al
alank
Pool Newbie
Pool Newbie
Posts: 4
Joined: Wed 18 Aug, 2010 17:28
My Pool: 24ft x 42 inch deep above ground
Location: Central Georgia

Another Green pool

Postby alank » Mon 23 Aug, 2010 15:48

Ok I have gotten my CYA down to 80 and the FC is at 10.5. I brought the chlorine up Sunday and overnight the deep greenish tint in my water has mostly went away. It is still cloudy. I cannot see the bottom yet, however is is clearer than yesterday. My filter runs 24/7

I assume I have started to kill the algae? Should I just hope the filter running will clear it up the cloudiness? Should I add some sort of clarifier to help with clearing up whats left?

Once again any suggestions are appreciated.
A


Edited the CYA reading from 8 to 80
floridapooltech
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My Pool: License # CPO34-283076
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Another Green pool

Postby floridapooltech » Mon 23 Aug, 2010 15:51

alank wrote:Ok I have gotten my CYA down to 8 and the FC is at 10.5. I brought the chlorine up Sunday and overnight the deep greenish tint in my water has mostly went away. It is still cloudy. I cannot see the bottom yet, however is is clearer than yesterday. My filter runs 24/7

I assume I have started to kill the algae? Should I just hope the filter running will clear it up the cloudiness? Should I add some sort of clarifier to help with clearing up whats left?

Once again any suggestions are appreciated.
Al


If the water is cloudy, a clarifier will work. Also, your CYA should be between 30-50 ppm, so you may need a small amount of stabilizer added.
Florida Pool Tech is a Florida certified service company headquartered in Tampa, Florida employing the best technicians and installers in the industry! Vist us at http://www.floridapooltech.com

Specializing in pool service and pool repair
alank
Pool Newbie
Pool Newbie
Posts: 4
Joined: Wed 18 Aug, 2010 17:28
My Pool: 24ft x 42 inch deep above ground
Location: Central Georgia

Another Green pool

Postby alank » Mon 23 Aug, 2010 16:12

[/quote]
If the water is cloudy, a clarifier will work. Also, your CYA should be between 30-50 ppm, so you may need a small amount of stabilizer added.[/quote]


I meant 80 on the CYA reading been a long day!
floridapooltech
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Joined: Wed 17 Feb, 2010 22:47
My Pool: License # CPO34-283076
Location: Tampa Bay, FL

Another Green pool

Postby floridapooltech » Mon 23 Aug, 2010 20:24

alank wrote:

If the water is cloudy, a clarifier will work. Also, your CYA should be between 30-50 ppm, so you may need a small amount of stabilizer added.[/quote]


I meant 80 on the CYA reading been a long day![/quote]


ok 80 is a little high but acceptable. hopefully a clarifier will help speed things up for you.
Florida Pool Tech is a Florida certified service company headquartered in Tampa, Florida employing the best technicians and installers in the industry! Vist us at http://www.floridapooltech.com

Specializing in pool service and pool repair

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