My Pool Water Turned Cloudy After Adding Bleach

[PoolDoc]

VFD pumps are all 2 - 3 HP motors; on their highest settings they are TOO large for any but the very largest sand filters (800lb and up). On their highest setting, they will blow sand out of smaller filters, and may crack laterals.

We are going to begin seeing questions that result from this problem.

[Wraypau]

I bought the ProTeam MicroFloc Clarifier. It says to add 14oz per 10,000 gallons. How would you test?

Also, I have a gunite pool, what type of vacuum would you recommend? thanks!

[PoolDoc]

14 fl oz to 10K gallons is a 10 ppm dose.

To duplicate that with a 3 gallon white bucket test, add 1/8 teaspoon to 1 cup of tap water (1:384 dilution), and mix. Put 3 gallons of POOL water in a CLEAN WHITE plastic bucket. Add 1.5 fl. oz (3 TABLESPOONS) of the mix, to the pool water. Mix, cover, wait 24 hours.

[Wraypau]

Roger that. I did the calculation, and figured 1 litre of water to 0.01 ml of Flocculate. I did several test, including the one you mentioned with 3 gal :1 Teaspoon. I will see what it looks like tomorrow.

I added another 1.42 gallons of bleach, and swept the walls/floor. The murky white water turned to a brown green, you could see it boiling up at the end of each stroke with the broom across the bottom.

My Taylor 1000 kit came in, so I figured I would give it a try, and I am reading a more brighter yellow than the highest setting. This correlates to a more than 5 Cl and more than 10 Br. Also, on the pH, I read a darker purple than the highest setting. This correlates to more than an 8.2 pH. I would think that this is to high, and is wasting some of my Chlorine. What should I add to straight out the pH?

I was going to vacuum the bottom, but the connector that attaches the hose to the skimmer was not the right size. i will get the correct size and try again tomorrow.

I had already added the floc when I found that my Taylor 1000 came in. Hope I didnt wast 9.8 ounces of it.

What are your recommendations? I really appreciate you taking the time to help me out. I will subscribe and be a paying member. How do I do so?

[Watermom]

If your pH is truly over 8.2, then you need to use a little muriatic acid to lower it. However, depending on how high your chlorine was when you tested the pH, your pH reading may be falsely high. So, when your chlorine drops below 5ppm, retest the pH. If it still tests over 7.8, lower it. Please read the link in my signature below about using muriatic acid safely.

Also in my signature, is the link and information about becoming a subscriber. We appreciate the financial support to keep our forum alive!

[PoolDoc]

I added another 1.42 gallons of bleach, and swept the walls/floor. The murky white water turned to a brown green, you could see it boiling up at the end of each stroke with the broom across the bottom.

Make SURE your chlorine is high, when this happens. That green sludge EATS chlorine . . . and if it gets ahead, you'll wake up to a green pool!

My Taylor 1000 kit came in, so I figured I would give it a try, and I am reading a more brighter yellow than the highest setting. This correlates to a more than 5 Cl and more than 10 Br. Also, on the pH, I read a darker purple than the highest setting. This correlates to more than an 8.2 pH.

Nope. It correlates to converting "phenol red" to "chloro-phenol red", which is a different dye. Ignore your pH readings when your chlorine is that high and your CYA is not.

[Wraypau]

I think i have killed all the algae. I did the floc test using your formula. It didn't do much. I did some separate test in smaller clear drinking glasses. If I overdose the flocculant, it really cleared up the water. It left a white creamy ewwie. Gueey. Substance on the bottom of glass. I assume the is the cloudy murky stuff in the water all condensed together


I flocked the pool and waited overnight with pump off. I didn't notice any difference. I did another K-1000 test this afternoon and it showed no chlorine and still the phone was super high. It was a darker color than highest setting on test tube, so I guess i need to add some acid.

The flocculants say that they need a 7.2 Ph to work properly.

I floc. The pool again this afternoon. Going to let it sit overnight again.

Any suggestions?

[gordyjamz]

Hi, I have some experience with flocs, so if I may chime in

Flocculants (floc) work by coagulating small particles together into bigger (heavier) ones, so that they can either filter out better or sink to the bottom. Your result from the drinking glass test is what you want to happen in the pool. What I have done in the past is add the floc, circulate water for 2 hours (recirculate if you can, avoid running floc treated water thru your filter), then shut off the pump and let everything settle overnight. Next, day I vacuum the debris and settled particles from the bottom to waste. NEVER run it thru the filter, as you will have a mess on your hands, cleaning the filter. I made that mistake the first time, wondered why my filter pressure went up so fast, went to clean it and found the floc left a slimy residue on the cartridge. I can only imagine what kind of mess it would be for a sand or de filter. As far as how much to add, every floc is different. You'll have to follow the directions on the bottle. Also, make sure you adjust your ph to the ph range listed on the bottle for the best results.

[PoolDoc]

You just need to act on the basis of what your tests showed; I can't advise more than that.

I don't see what kind of filter you have, in your signature. If you can carefully vacuum to waste, that would be probably be best. What you want is to vacuum with as little water as you can, moving as fast as you can without stirring up the floc. You may want to try vacuuming, while someone else adjusts pump speed for you.

Of course, if you have no "waste" position, you'll have to vacuum to filter. In that case, you want again to go as quickly as possible, with as little water as possible, with one more point: keep the pump speed down so you do NOT over load the filter, or push the floc through.

I'd love to hear how it goes!

[Wraypau]

Just to clarify things a little. I have not installed the Hayward Ecostar Vari-speed pump yet. I have a brand new one, a salt water system, and a new hayward sand filter. I wanted to get the pool all clean, before installing the new stuff. I am currently running a 3/4 hp Hayward super pump with the OLD sand filter.

I added the flocculant again this afternoon right before dark. Now that it is dark, when I turn my underwater light on, the water looks like it has millions of tiny snowflakes floating around in it. The problem is, is that it is not sinking.

Every time I vacuum though, I am getting lots of slime in both my skimmer and pre-pump filter. As I said earlier, I am still using the old sand filter, which is probably about 10 yrs old. I think I might should change out the sand, and see if that will help it catch more of the slime.

What you think?