dark green pool - how do I clean it??

Algae problems in swimming pool water.
Green (cloudy) water or slimy pool walls.
Black algae. Mustard algae. Pink or white pool mold.
sptygl
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My Pool: I THINK it is 20,000 gallons. Inground pool. 8-10 feet at deep end, kidney shaped pool. I have a spa that waterfalls into the pool

Dark green pool

Postby sptygl » Sun 07 Jun, 2009 00:33

Demons1964 wrote:Buy yourselves a drop-based test kit and post your results up here (pH, Total Alkalinity, and free chlorine). Alternatively you can take a pool water sample to a pool shop and pay them to provide the analysis (just ignore them when they try to sell you a pile of chemicals that you don't really need). Irrespective, we need to know what your pool is lacking in to advise you further.

In a nutshell you need to get your pH and Total Alkalinity to within a certain range to allow the chlorine to do its job effectively. A green pool means your free chlorine is either non-existant or ineffective. If you advise how many gallons your pool is, any one of us here can let you know the amounts of chemicals to add and the order in which to add them to get your pools back on track.

By the way, pouring in $ (algecide) is not the answer, chlorine can do exactly the same job for you at a much reduced price in the form of bleach.



please advise, Do I need Algaecide with the chlorine or just chlorine? And you mentioned a reduced price for chlorine, is that just regular bleach? and where would I get that type for the pool, if it is a special type??

thanks!!!


ISNTMENTTOLAST

dark green pool - how do I clean it??

Postby ISNTMENTTOLAST » Fri 03 Jul, 2009 16:14

i have a problem with my pool well a few but we have just recently cleaned out all the water and im filling it up now i added algicide and some chlorine but now its get a tint of green in it how can i get it clear by tomorrow after noon? oh not to mention my pump doent work.
poop deck pool girl

what's the borax do??

Postby poop deck pool girl » Mon 12 Apr, 2010 11:14

Boy, am I glad to have come across this forum!!! Chemgeek your awesome!!
So I've seen the magical transformation of your pool with the household bleach and I can't wait to start our opening here....but what does the borax do?
chem geek
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dark green pool - how do I clean it??

Postby chem geek » Mon 12 Apr, 2010 14:12

The example I showed here wasn't my pool, but an example from The PoolForum website (unfortunately, they do not accept new members, but many of those folks are now at Trouble Free Pool .

The Borax was probably used to raise the pH. Higher levels of borates can be used to stabilize pH and as a mild algaecide, but I would assume that the one box of Borax was used to raise the pH. It is similar to pH Up except that it raises pH with half the rise of TA compared to pH Up.

For more info on opening your pool and many other items about pools, please read the Pool School .
Guest

dark green pool - how do I clean it??

Postby Guest » Thu 09 Sep, 2010 22:00

Good Day,

Can any water be saved. About to take over a house in 8 weeks time that I think has not had the filter on once in the last 18 - 24 months, maybe longer... The water is the darkest of green colors.
The pool is an inground pool with I believe a pebble type finish on the bottom. Can not see through the 1st 5mm let alone to the bottom.
I understand that I need to get the (pH, Total Alkalinity, and free chlorine) to a certain range and then is it just the case of bombing it with massive amounts of high concentrated chlorine, gradually over a couple of weeks. Really curious as I find it hard to believe that this water can be cleaned to an apropriate safe level.
Thanks
Curious M
Allen G Myerson

dark green pool - how do I clean it??

Postby Allen G Myerson » Thu 09 Sep, 2010 23:45

Take a water sample in to the pool store to get the following readings:

pH
Total Alkalinity
Calcium Hardness
Cyanuric acid
Copper
Iron

Filter out the sediment using a coffee filter so that the particles do not interfere too much. Get the Taylor K-2006 test kit. Get extra chlorine reagents R-0870 and R-0871.

Most water can be cleaned back to sparkling clean. Once you get the information and the test kit, and are ready to get going, post back and hopefully someone will be able to help you.
floridapooltech
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My Pool: License # CPO34-283076
Location: Tampa Bay, FL

dark green pool - how do I clean it??

Postby floridapooltech » Sat 11 Sep, 2010 17:50

After you have the test results, you may want to look into using a good algaecide to clear up the pool if you want it done quickly. If you don't mind waiting, super chlorinating with chlorine or granular will work just fine to clear up the pool. You will have to brush it several times and vacuum the sediment once it begins to clear up.
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
mx357xm2

dark green pool - how do I clean it??

Postby mx357xm2 » Sat 11 Sep, 2010 18:49

Algaecide is for preventing algae. It would not help at all with this pool.
floridapooltech
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Posts: 307
Joined: Wed 17 Feb, 2010 22:47
My Pool: License # CPO34-283076
Location: Tampa Bay, FL

dark green pool - how do I clean it??

Postby floridapooltech » Sun 12 Sep, 2010 14:13

mx357xm2 wrote:Algaecide is for preventing algae. It would not help at all with this pool.


That is incorrect. Algaecide will in-fact kill an algal outbreak as well as prevent one from occurring (maintenance dosage).
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
mx357xm2

dark green pool - how do I clean it??

Postby mx357xm2 » Sun 12 Sep, 2010 15:24

Pool User
has not had the filter on once in the last 18 - 24 months, maybe longer... The water is the darkest of green colors.
Can not see through the 1st 5mm let alone to the bottom.


swimnsaveusa
a good algaecide to clear up the pool if you want it done quickly


What algaecide will quickly clear this much algae? And, how much of it would need to be added, assuming a 20,000 gallon pool?

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