Pool Shock & Floc Not Working

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Chlorine= 0ppm


pH=6.8

Alkalinity=40ppm

Hardness =190ppm

Cyanuric Acid=30ppm

Sand filter

I have a 30' x 52" above ground pool.

The water was green at start of this year. I brushed walls and floor and added 12 pounds of shock & 1qt. of algaecide and let pump run for 12hrs. Then added 2qt. floc and let pump run (in recirculate) for 4hrs, turned off and let set.

Waited up to 72hrs and water looked cloudy with hint of a green tint. Then found live algae on floor so I brushed real good and added another 10-12lbs. of shock and let run for 12 hrs then added floc again.

It has now been 24hrs and this is where I am at. Water looks really cloudy whitish-blue color. Every thing I've done was per a local pool place (Crystal Pools, Jenks, ok) Any advice? Thank you

Jerry




Thanks for the question Jerry

Your 30 X 52 above ground pool would hold approx. 21,200 gallons of water, so we'll start from there.

First, I would suggest you read these two posts that I recently answered about this very issue:

Can Super Floc Remove Pool Algae?

Pool Opening..Used Algaecide And Floc...Now The Pool Is White And Cloudy...

First is the algaecide. An algaecide is used for preventative maintenance only, it's never used to clear up an existing algae bloom or green pool water. When you keep your chlorine level between 2 - 4ppm there's really no reason to use an algaecide.

If you do decide to get one, be sure it's a PolyQuat 60. This contains no metals and is safe for vinyl pools. It can be used as temporary insurance while you're doing a shock, but this is about it.

Next is the floc. On this website, and most pool forums, will tell you that floccing a pool, while it may have it's benefits, will more than likely not help. My general rule for pool care is to not use a product that isn't necessary. If you use products that aren't required, you're wasting more time and money, and run the risk of negative side effects.

While floc may not have big side effects, it does cost time and money. Floc can't take care of live algae. All of the algae needs to be dead before you try to use floc. Your must kill all of the algae first, then use a floc. Your pool is probably cloudy for a few reasons:

*Your algae is dying or is already dead

*You used a floc

*Your filter is not working at 100%

And due to the nature of sand filters, it will take longer to clear a pool that has used a floc. Your CYA is good. For maintenance, it should be between 30 - 50ppm. Try to shock in the evening and retest your chlorine level in the morning. If you still have a good shock, this means the CYA is working and the chlorine has consumed all the algae. A good shock is maintaining the FC at 12ppm until the algae is dead. This means manually dosing your pool with liquid chlorine. Use 1 gallon per 10k gallons of pool water. Shock is a process, not something you buy. It's maintaining a FC of 12ppm to kill the algae.

Sometimes it will seem to take massive dosing of chlorine to get rid of the pool algae. Your pool will be cloudy for a while as the filter clears everything out.

Here are the links to raise your alkalinity and pH levels:

Swimming Pool Chemistry

Pool Alkalinity

Total Alkalinity

Swimming Pool pH Levels

Pool pH


Be sure you're backwashing once per day. I have cleared hundreds of green pools and have never used a pool floc. You're doing right in chlorinating your pool, brushing, filtering, testing, work, and patience. This is really the only true method to getting your pool back into shape. It may take a few days to a week to get your pool crystal clear once again. The answer is not in a magic bottle. The best thing to do is to not get suckered into buying all kinds of products that you don't need.

Hope this helps and let me know how it turns out for you.

Robert

Comments for Pool Shock & Floc Not Working

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Jun 21, 2016
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How do you remove floc that has not worked?
by: Stephanie

Flocked 4 days ago. No visual difference. Ph at 7.5 FC at 0 CYA at 30. 17,200 gal above ground. Is there anything I can add to "activate" the flock or do I add more? I don't know how to remove it from pool since there is no visible "cloud" to vacuum. I don't want to ruin my filter by just turning it on and hoping for the best. So any direction is appreciated.

Jun 14, 2016
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Pool Sludge
by: Rick

We too have pool sludge. Our winter cover came off and we had LEAVES in the bottom of pool that decayed. We scooped them all out, balanced chemicals, ran filter. Still cloudy.

We are making improvements in the cloudy water by getting a new cartridge filter and we purchased at pool store a pool sock. It looks like a pair of pantyhose that fits over your skimmer basket. This way you are filtering the water before it gets to your filter.

We are cleaning the pool socks in the sink then reusing them and have big improvements since we started this. We are also adding 2 ounces of clarifier daily to the pool.

Jun 14, 2016
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Pool Sludge Woes
by: AliciaMae

I have shocked my pool, nothing. I flicked my pool, nothing, I tried vacuuming out whatever I could and there is thick stuff on the bottom that we can't see and the hose kept getting clogged. I had my water tested yesterday ( chlor.-0, CH-150, CA-30, TA-120, ph-7.8). I tried flocking it again thinking that something was off last time and this morning it looks just as bad and maybe thicker :(. Flicking has always worked before and gotten rid of the junk fast so I could not waste my shock. I have no idea what to do now!!! Please help! I have an above ground 14.5 thousand gal.




Hi Alicia. You need to maintain a high FC level by using 2 gallons of liquid chlorine and clean the filter. Your readings are good expect the FC. Clearing up a pool is a process, not a product you by. The process is easy to duplicate but is more than one statement. It's the understanding of why it happened, what's going on now, and ways to prevent your pool from going green again.

I have these resources available to you:

Clear Blue Pool eBook
How To Clear Up A Green Pool eBook
Resources
Personal Phone Consultation

Robert

Jun 10, 2016
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Pool Is Cloudy
by: Lyle

I had my pool clear two weeks ago and it rained and 2 days later I untarped it and it was cloud and greenish. My levels all seem to be bang on. My pool store thinks it is my sand filter but I just had it clear so that doesn't make sense to me.

I am in the process of flocing it...put the floc in last night but no change as of yet although it has only been 18 hrs ( how long should I leave the floc before I admit is didn't work)

Should I change my sand? should I change my filter to a a cartridge system? I am so frustrated man you would not believe! Anything you can share would be so appreciated.




Hi Lyle. A complete set of chemical numbers will help. Also, floccing doesn't take care of the underlying issue with cloudy pools. Here's a cloudy pool I cleared up in 2 days for $4.50 without floccs:





Cloudy pools aren't all the same but the same technique is used to clear them. Waaayyy too many experts that say use this or that product. They're all the same and never solve the real issue. I've written extensively about this issue in my eBooks.

Clear Blue Pool eBook
How To Clear Up A Green Pool eBook
Resources
Personal Phone Consultation

Robert


May 31, 2016
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Pool Still Cloudy After Chemicals and Floc
by: Joey

Me and my gf have a I ground pool and a sand filter. We vac the pool, put chemicals, and everything but the pool stayed cloudy for 2 weeks of playing with the levels. We got sick of it and use floc. Well we waited 24 hours and then 48 hours and still cloudy. I decided to start vac to waste. It slightly cleared it but still can't fully see the bottom on shallow side and def can't see the bottom on deep side. Now I don't know what to do. I don't even know how much of the floc is remaining on the bottom because I can't see it. I've refilled twice and vacuumed and about to do it again but then what? Please help us! We need pool time!




Hi Joey. I can tell you right now that floccs don't work for clearing up a pool. They only mask the problem. Here's a video where I took a cloudy pool and cleared it up in 2 days for $4.50 without the use of floccs or clarifiers. Yes it's that's easy when you have the right info.





This one I did on May 1,2016 in 5 days for about $30. Same pool. The owner let it sit for about 4 months:





You can learn how to maintain a perfect pool and how to clear it up in my eBooks. The links are provided here:

Clear Blue Pool eBook
Clear Up A Green Pool eBook
Resources
Swimming Pool Consultation

I'm also available for personal consults. Hope to hear from you soon.

Robert

May 30, 2016
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Above Ground Pool the Same
by: Monica

I watched your video and wondering if the same goes for an above ground pool?

Hi Monica. The process is the same for either kind of pool, but how you go about it depends on many factors, including your chem readings.

Robert

May 26, 2016
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In ground Pool with Safety Cover
by: Anonymous

We have an 18x36 inground pool. We use a mesh safety cover during the winter which still allows a lot of dirt through and into the pool. Our yard slopes downward toward the pool...and we had a rough winter with historic rainfalls. We were late opening our pool this year and when we opened it 2 days ago the water looked black!

We can see massive amounts of dirt and really thick algae. We have used 5 lbs of shock and a bottle of Pink X Algaecide (per our pool store's recommendation) just trying to get it clear enough for a pool guy to come use his gas powered pump to vacuum it. So far it doesn't look much better at all. Any advice on how to do this as easily and as inexpensive as possible would be greatly appreciated.




First is to manually remove as much gunk and algae as you can. Don't worry about adding chemicals. And don't use Pink X. You're basically fighting algae using ammonia. The ingredient is Didecyl dimethyl ammonium chloride. You don't need it. Liquid chlorine is all you need to kill bacteria and algae.

I need your complete chemical readings, the actual numbers:

Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, and Metals (iron and copper) and names of any algaecides you may have used along with clarifiers, phosphate removers, and/or flocs. It makes troubleshooting much easier and the process of clearing up your pool will go much faster.

If the pool guy insists on trying to clear up the pool first, you need to be sure the filter is working and maintain a high FC level, but the chlorine's effectiveness can be affected by the pH and CYA. Be sure the water level is correct and the skimmer basket is cleaned out to allow for proper water flow. I have no idea what the bottom drain look like but from your description is might be covered with algae or sludge.

Remember I do have eBooks and consults available if you need personalized or immediate service. Another set of eyes and ears is always good.

Clear Blue Pool eBook
Clear Up A Green Pool eBook
Resources
Swimming Pool Consultation

Robert

May 26, 2016
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Help with Pool
by: Anonymous

This is my first year owning a pool and I've tried everything these websites have suggested to keep it clean and clear. But it is still cloudy and I don't have a pump that will vacuum to waste or backwash or any of that I have a crappy cartridge filter pump.

My water is always cloudy even though all my chemical reading say its fine! I don't know why it keeps turning green I shock a few times a month and it still does every time it does turn blue again its cloudy as hell. I've replaced the cartridges numerous times and it still wont clear up! How can I fix this problem cheaply and quickly! I'm getting to the point where I'm going to empty and refill it! Its really pissing me off!!!!!!!!!




I need your complete chemical readings, the actual numbers:

Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, and Metals (iron and copper) and names of any algaecides you may have used along with clarifiers, phosphate removers, and/or flocs. It makes troubleshooting much easier and the process of clearing up your pool will go much faster. Green water is a symptom of the problem, not the problem itself. I also need the kind of filter you have and if it's working properly. If it's not working it must be fixed in order to clear up the pool.

Next, this video is me clearing up a 17k gallon pool in 5 days for about $30. When you have the right information you can do it.





You're not going to find how to easily clear you pool from another site. Watch my videos here and on YouTube and compare. You'll immediately see the difference.

I also have eBooks and consults available:

Clear Blue Pool eBook
Clear Up A Green Pool eBook
Resources
Swimming Pool Consultation

Robert

Aug 08, 2015
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White Milky Pool After Flocing
by: Anonymous

I have a semi in ground pool , 15x 30. First issue is the cartridge filter, very unahhapy with it. This is our second season with This pool after our old pool collapsed after 17 yrs after a big storm. So we are no stranger to pool maintenance. The problem we have is Milky white water after flocing per pool store. We had green water after returning from vacation. And was told to put in algicide then floc. The algicide did nothing so we repeated the process. Then floced, which did nothing., just the white water. Not even able to see the bottom to vacuum. Told then to shock with 3 lbs of shock and and baking soda. Did all that the filter has been running and no change. I am so frustrated! Any suggestions?




Thanks for the question. I need your complete chemical readings, the actual numbers:

Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, and Metals (iron and copper) and names of any algaecides you may have used along with clarifiers, phosphate removers, and/or flocs. It makes troubleshooting much easier and the process of clearing up your pool will go much faster. Green and cloudy water is a symptom of the problem, not the problem itself.

If you have more than 2000 filter hours on the cartridge it will need to be replaced.

If you feel your situation is more complex than this, I do phone and/or SKYPE consultations. It makes things go much faster and many people have found it extremely beneficial, saving them time and money in the long run. All your questions will be answered. I have nothing to sell you so you know I'm not bias. If you purchase a personal phone consult you'll get all 3 eBooks for free.

Pool Consultation

Clear Blue Pool eBook

How To Clear Up A Green Pool eBook

Swimming Pool Resources

Robert

Jun 07, 2015
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my advice to Jerry...
by: Myra

Ill keep it simple LISTEN TO ROBERT'S ADVICE & get his Ebook!! Itll save you $$$ and stress/frustration!!!!

Jun 07, 2015
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WELL SAID
by: Anonymous

DONT YOU JUST LOVE IT WHEN PEOPLE TRY TO TELL YOU HOW TO DO YOUR JOB??????????? Thanks for the information I just wasted money on floc.

May 16, 2014
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Thank you Robert
by: Anonymous

For someone who is constantly carrying water to the pool store and being sold hundreds of dollars worth of chemicals, I wanted to say thanks for the insight!!

Jul 13, 2013
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Floc For Pools
by: Anonymous

Can't believe your advising againest algaecides and suggesting they are not needed. Did you not say they are used as a preventative and furthermore you have to use a algaecide to kill algae. Shock and chlorine will not do so or your pool would not have turned green in the first place usually bathing suit contamination is a direct result of algae being introduced to your water. Furthermore if you really knew anything about pools you would know that sand or cartridge filters CANNOT filter algae which is why you floc to drop and vac on waste...




Thanks for the comment but I really have to laugh at this. IF I knew anything about pools? I had a pool route in Arizona for years and was the pool operator at the YMCA in Albany, OR. I saved them nearly $15,000 in chemicals the first 2 years I was there. Mid-Willamette YMCA. Check it out.

Next, one of the main reasons that pools go green is either too high or low CYA. And I've never said to never use an algaecide. If your chemical readings are correct there's no reason to use it, but if you need to such as in the process of clearing up a green pool, or you can't test the water on a weekly basis, then only use a PolyQuat 60 algaecide.

When you already have an algae problem or green water, algaecide will not kill already existing algae. I've made that point clearly and throughout my site.

Flocs don't address why the pool is cloudy in the first place. This is an issue that is used throughout my site as well. Pool owner has a cloudy pool so add some floc. Magic in a bottle. It clears up the pool and then vacuum to WASTE. Great! But why is the pool cloudy in the first place? Let's solve that so you don't need to floc. This is why getting the pool's chemical readings are the best way to go.

Thanks for visiting and have a great day.

Robert

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