Added Clorox to Green Pool

Algae problems in swimming pool water.
Green (cloudy) water or slimy pool walls.
Black algae. Mustard algae. Pink or white pool mold.
chem geek
Pool Industry Leader
Pool Industry Leader
Posts: 2382
Joined: Thu 21 Jun, 2007 21:27
Location: San Rafael, California

Added Clorox to Green Pool

Postby chem geek » Sun 19 Jul, 2009 13:08

sattori,

What you describe is what happens when the water has copper (or other metals) in it since lowering the pH helps redissolve them. However, that is more of a clear green color. If it's a very cloudy green with visible algae clumps, then that's algae that chlorine will kill. So there are two different sorts of problems with two very different sorts of solutions. To keep the green away in your case with metals in the pool, you'd have to add a lot of metal sequestrant after you got the pH lower.


Dan The Poor(l) Man

Added Clorox to Green Pool

Postby Dan The Poor(l) Man » Tue 21 Jul, 2009 11:57

That's it!!! Muratic acid should do it! I bought my house last year, and the pool had been neglected that, only God knows for how long by the previous onwner, my pool's main drain was clogged with calcium deposits all the way inside the pipe!! I tried everything I could think of to unclog it by drilling, sanding little by liitle ... but the hole is such small that I only could get so far! By the way, I forgot to tell you that the pool was full of dirty water, trash and ... frogs! I had to buy a pump to pumping out all the water. I was thinking of hiring a Rotor Rooster guy who would have a string driller to unclog it for me, or hoping he could do it! The calcium deposit was so hard that I used several gallons of LCR (sp?) to soak it for several days but to no avail!! I happend to see the Muratic acid at HomeDepo while trying to look for a larger quantity of LCR (much more expensive than Muratic acid). It costs about $9.00 for a gallon - after reading the label I decided to give it a try before I call the Rotor Rooster guy who could cost me few hundred dollars??? Man! Muratic acid broke down the calcium easily after I soaked it up for couple days! I went and bought another gallon and poured it into the pipes (PVC pipies) to make sure there isn't any clog somewhere along the pipe that I couldn't see and know. Filled the water up and have a beautiful pool running again (after I changed out the old filter pump).

This year I have so much problem with the algae. Spent several hundred dollars on the chemicals and several hundred dollars for the Chlorine ... It came right back the next week! I've been thinking how come I did not have the algae problem last year but this year and thought about that Muratic acid that I used (which remained inside the pipes) while surfing the internet for advices and solution, and I got here!!

Your reply confirmed what I have had in mind!!! I'm sharing this with anyone out there who happens get to this site and is also looking for a solution to the pool's algae problem!

Many thanks

Dan
dank

Added Clorox to Green Pool

Postby dank » Wed 14 Jul, 2010 14:28

thank you for putting helpful advice out there for us. I really appreciate it.
April

Added Clorox to Green Pool

Postby April » Sun 15 May, 2011 15:13

After reading all of this...My husband is now buying clorox. I have spent $$$ and I am just about to loose it. So we will see. The only thing is I have a sand filter so I am alittle worried but, after going to the pool store and tons of testing for a month now I am going to try this approach and I will post what happens.
chem geek
Pool Industry Leader
Pool Industry Leader
Posts: 2382
Joined: Thu 21 Jun, 2007 21:27
Location: San Rafael, California

Added Clorox to Green Pool

Postby chem geek » Mon 16 May, 2011 00:22

If you have algae, please read Defeating Algae and find out your true Cyanuric Acid (CYA) level. You should seriously consider getting a proper test kit, either the Taylor K-2006 or the TFTestkits TF-100 .
Guest

Added Clorox to Green Pool

Postby Guest » Sat 30 Jul, 2011 16:01

how sooon can you go swimming after added the muriatic acid??? does it kill the algae too??
chem geek
Pool Industry Leader
Pool Industry Leader
Posts: 2382
Joined: Thu 21 Jun, 2007 21:27
Location: San Rafael, California

Added Clorox to Green Pool

Postby chem geek » Sun 31 Jul, 2011 18:06

Muriatic Acid lowers pH and Total Alkalinity (TA). It does not kill algae. You can swim within an hour of adding most concentrated chemicals into the pool -- possibly even after 15 minutes or so if your circulation is very good. It all depends on how quickly the chemical is dispersed (diluted) in the water. An exception would be where you add a chemical that specifically states you can't swim for some time after adding it or when shocking the pool to a high chlorine level (though with CYA in the water, even shock levels have relatively low active chlorine compared to, say, indoor pools with no CYA).
dale lee

Added Clorox to Green Pool

Postby dale lee » Sun 11 Sep, 2011 09:37

useing 6way test strips. all levels are good exept total chlorine and free clorine are high.but water looks clear as hell.I change out filter every day and filter is somewhat green.aqua chem is telling me to put tons of chem. in it.my pool is only 5500 gal. can i drain like 1/2 the water instead or drain it all.
chem geek
Pool Industry Leader
Pool Industry Leader
Posts: 2382
Joined: Thu 21 Jun, 2007 21:27
Location: San Rafael, California

Added Clorox to Green Pool

Postby chem geek » Sun 11 Sep, 2011 11:49

Test strips are next to useless, especially for the CYA reading and they don't test CH at all. See this post for example. I suspect that your CYA level may be high. Please do yourself a favor and get either the Taylor K-2006 or the TFTestkits TF-100 . You won't regret it.
Guest

Added Clorox to Green Pool

Postby Guest » Wed 26 Oct, 2011 22:07

I cannot believe what I am reading...You are seriously using fucking clorox and BLEACHED YOUR FUCKING POOL..maybe if you went to a quality pool store that sold pharmacy grade shock that actually killed your algae You wouldn't have to resort to Clorox. Bleach should never be added to a pool. Yes it does shock it but it's not recommended AT ALL. Instead of spending money on cheap ass chemicals that shouldn't even be added to your pool because they are a cleaning product technically NOT A SWIMMING POOL PRODUCT, maybe spend the couple extra bucks to buy chems that would actually work to help solve your problem. Try fucking liquid chlorine. It works ten times as fast and is alot stronger than Clorox will ever be. As for your water chemistry, your ph is already too low, so adding muriactic acid would not help you at all except make your water more acidic. Also, your Calcuim hardness is waaaayy too high..I would recommend a scale preventative to try and bring it down from 400 to at least a 150.

Return to “Pool Algae & Green Pool Water”

Who is online at the Pool Help Forum

Users browsing this forum: No registered users and 9 guests