Pool Algae & Green Pool Water

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Anyone ever try a UV light for algae? No more green!

by Traz » Sat 22 May, 2010 14:50

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I am tired of dealing with green water. I have had a pool since I was a kid & never seem to have problems with green water. The past 2 years that...

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Whoo hoo. No more green We have gone from swamp brown nasty green to pea soup green to mint green & now no green but very cloudy... all with...

8 Replies

5876 Views

Last post by Traz
Tue 25 May, 2010 21:26
Too much chlorine?

by Eleanor » Sun 23 May, 2010 13:09

First post

Hello Everyone. I have just joined this Forum.

My friend had deep green pool. I got the pump working and backwashed etc. I cleaned out all the yukky...

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Thank you so much. I have been reading through the link that you provided and it is really good. I shall be camping at the poolside until it is...

2 Replies

1757 Views

Last post by Eleanor
Mon 24 May, 2010 15:29
Green Pool
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by MSFROGGY » Thu 16 Jul, 2009 15:04

First post

I have done everything that I have been told to do.
24 ft vinyl above ground
hayward 1 hp pump brand new
sand filter.

Here is readings
FREE CHL...

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you might try a bottle of sand filter cleaner you run it just enough to get in the sand filter and shut it off this only take a hfew seconds pour it...
13 Replies

13810 Views

Last post by Guest
Fri 21 May, 2010 13:52
Dark Green Pool, but no algae.

by Jim in Irving Texas » Sun 16 May, 2010 16:57

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I have a 15,000 gallon above ground vinyl pool with submersible steps and a sand filtration system. I run the pool year round, but it is of little...

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I have the exact same problem. My pool is only 5400 gallons and Leslie's pool told me to do the same thing as you. Chemical readings are fine and...

2 Replies

4150 Views

Last post by todd
Thu 20 May, 2010 19:35
Bright grren pool, all levels okay?
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by jimmijam » Sun 27 Dec, 2009 20:37

First post

I meed help! I am at my wits end. The story starts..... We took our automatic sunbather cover off our pool 8 weeks ago. the water was a lovely blue....

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This MSDS for Aqua Chem Algaecide Plus (see here ) says it contains 3.3% copper derived from copper sulfate pentahydrate and also contains polymeric...
18 Replies

14767 Views

Last post by chem geek
Sat 08 May, 2010 16:01
Algae colony hiding in plastic stairs. How to kill?

by kristymcj » Tue 04 May, 2010 10:25

First post

When we removed our above-ground pool stairs green and (almost) black algae poured out of the little holes in the legs. We're relieved to know why...

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Bleach will certainly kill the algae that is already there, but you probably didn't have a sufficiently high Free Chlorine (FC) level relative to...

1 Replies

2719 Views

Last post by chem geek
Tue 04 May, 2010 16:06
mustard algae

by kahleds » Sun 02 May, 2010 14:09

First post

Having mustard algae problems in my pool. Any tips would be greatly appreciated. Pool chemistry is as follows:

FC 2.5
CC 0
pH 7.4
25000 gallons

Last post

Thanks for the information!

4 Replies

2318 Views

Last post by Guest
Mon 03 May, 2010 11:39
Green Pool, Algae won't die

by oneArmedAssassin » Fri 30 Apr, 2010 14:49

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Just opened the pool last week to get it ready for the swimming season. When opened the pool water was very green and cloudy. Can barely see the...

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Please read Defeating Algae in the Pool School. Lowering phosphates is not the only way to handle this and won't always work that well if you also...

4 Replies

4147 Views

Last post by chem geek
Sat 01 May, 2010 08:36
total and free chlorine
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by pup55 » Sun 23 Aug, 2009 11:24

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I keep having problems with algae growth and would like to know if the total and free chlorine are to high could this be a cause? My total and fre...

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you may want to something about the PH as this can be a contributing factor.what temoerature is your pool and what chemicals are you using
23 Replies

8025 Views

Last post by zetdah
Wed 14 Apr, 2010 04:04
Dried Algea in drained pool

by Padilla » Fri 02 Apr, 2010 17:00

First post

We drained our pool after it turned green and full of algea. The algea has dried to the sides of the pool. What is the best way to remove it?

Last post

if your pool isnt painted i would start off using a metal brush a spray bottle from lowes or any hardware store a couple bottles of maratic acid and...

3 Replies

2094 Views

Last post by mike45
Sat 03 Apr, 2010 12:23
Can red algae "kill" an Ozone Generator?

by Max01 » Mon 08 Feb, 2010 11:03

First post

Hello,

Today my 2 months old water (in the spa) is clear again, the PH is around 7,5, the FC is 1-2ppm. We have been on holidays (for 2 weeks) and...

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The ozone generator is either under a suction vacuum or return venturi. This setup means that you will see air bubbles all the time, even if the bulb...

2 Replies

1642 Views

Last post by Guru
Fri 19 Feb, 2010 14:23
Pool turns green when adding granular chlorine
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by Guest » Mon 02 Nov, 2009 16:16

First post

Hi Guys,

Had a rough first day. cleaned my first pool. I tested the water and discovered it had no chlorine, no or little PH reading and zero...

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This morning i put 2 lbs of shock in my pool and within 15 mins it was a beautiful shade of green. I think that meant that the PH was too high and...
13 Replies

13765 Views

Last post by chatfield
Fri 22 Jan, 2010 18:07
2nd round of Green Water

by mel » Tue 05 Jan, 2010 03:23

First post

Ok so here we go. We have recently bought a new house and thought we were going well with maintaining our pool when all of a sudden the rainy weather...

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bleach is low concentrate liquid chlorine.

liquid chlorine is typically 10%-14% and bleach is 3%-6%

2 Replies

1016 Views

Last post by samueltt
Fri 08 Jan, 2010 05:27
cloudy water and green algae

by crispy1985 » Sun 23 Aug, 2009 09:44

First post

I can not get my pool clear. For a week my pool water has been cloudy with green algae on the bottom. I keep vacuuming but it is difficult to see the...

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There are over 20,000 pool owners at The PoolForum and over 10,000 at Trouble Free Pool plus hundreds of others on other forums including this one...

6 Replies

6656 Views

Last post by chem geek
Mon 26 Oct, 2009 22:22
Boss said "Pool will not turn with high chl lvls!" True?

by wolfman83661 » Sun 04 Oct, 2009 14:37

First post

Hi there,

Got a question on algae and chlorine. I recently took over pool maintenance for the property that I work as a tech at in Tucson. I have no...

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Danny,

What was the Cyanuric Acid (CYA) level in the pool that had 9 ppm FC with an algae bloom? Was this pool using only stabilized chlorine (e.g....

4 Replies

1857 Views

Last post by chem geek
Tue 06 Oct, 2009 00:13
Algae Problems, Green Pool Advice

by SweetwaterPoolService » Fri 25 Sep, 2009 15:09

First post

It's true, no matter who you are...

Metals enter your pool and dissolve in the water whenever
1) fresh make-up water is added
2) gas heaters are...

Last post

Dihydrogen monoxide is a pool chemical that does not increase TDS.

Unfortunately the water most people add to their pool is not pure H2O and thus...

3 Replies

1718 Views

Last post by nocturnalsheep
Mon 05 Oct, 2009 14:03
How do i tell if i have algae or not

by Guest » Mon 21 Sep, 2009 13:30

First post

Hi all, I am from the UK and I have a 15ft diamter round above ground pool that is giving me so many problems. Basically my water keeps going dark...

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Unless your pH got high and/or you used an algaecide with copper in it (or your Trichlor pucks had copper in them), then it is unlikely the green is...

2 Replies

1501 Views

Last post by chem geek
Mon 21 Sep, 2009 23:22
From clear to algae covered and solid green.... in 3 days!

by 1984mountaineer » Tue 25 Aug, 2009 14:06

First post

Problem : On Thursday evening, I noticed regular crud on the bottom of the pool, so I did my thrice weekly vacuuming. When I finished, the pool was...

Last post

Thanks for the advice on the test kit. Mine is a pretty basic reagent, so it will certainly be something that I upgrade before next summer.

Just...

4 Replies

2146 Views

Last post by 1984mountaineer
Wed 26 Aug, 2009 08:03
Mustard Algea????
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by rozebudd » Fri 01 Jun, 2007 12:57

First post

I am going nuts. Last summer we started seeing this brown sor tof 'dust' all of the pool. I kept vacuuming thinking it was just dust left over from...

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Thank you Debbie, I just started having this problem over the last 2 months and i have spent so much money trying to get my Mustard Algea cleared...
12 Replies

6368 Views

Last post by Guest
Mon 24 Aug, 2009 13:37
Newbie frighting green aglae CC 5.2, TC 0

by sethz » Thu 20 Aug, 2009 16:07

First post

Greetings, I am new pool owner. Long story short, the pool was neglected by previous owner last fall, they did hire people to close the pool, but my...

Last post

A follow up, this morning the pool water LOOKs crystal clear. I bring the water sample to the pool shop again:
FC 0
CC 0
pH 6.9
TA 50
CH 225
CYA 0...

1 Replies

1187 Views

Last post by sethz
Fri 21 Aug, 2009 15:10

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