High Chlorine After Shock

[kcassidy0772]

Hi,

I’m new to the forum. I have a 15x30 semi-in ground pool. I had some yellow algae issues so I’m Wednesday night I brushed the entire pool and over shocked my pool with Calcium Hydrochloride powder shock. Took care of algae but my pool is still very cloudy and chlorine levels are high. Right now my total chlorine is about 10ppm and free is around 5ppm. A few hours ago I added 2 lbs of non chlorine shock. So far hasn’t seemed to bring down levels. What else if anything should I do to help bring down the combined chlorine level? I’d like to not just keep waiting it out bc it’s taking a long time and would like to enjoy the pool Right now ph is about 7.6.

Thanks, Kevin.

 

[RLP]

Welcome

Read up on how we care for our pools. We use liquid chlorine or a swcg to sanitize .

Google search results

www.troublefreepool.com

You will also need a test kit, either a Tf100 or Taylor K 2006.

add 5 ppm of liquid chlorine daily, per pool math. when your test kit arrives, post the results.

also fill out your signature with details on your pool and equipmen.

 

[kcassidy0772]

I only have chlorine tablets at the moment I’ll have to buy some liquid chlorine. But curious, since my chlorine is high right now why should I add some now? I kept the tablets out of my pool since I super shocked on Wednesday night because I’m trying to bring it down.

Kevin
15x30 semi-inground
Hayward pump and cartridge filter

 

[Jimrahbe]

Kevin,

Dumping in a bunch of chlorine one time, and hoping, does not get rid of algae. What it does, is kind of knock it back so you don't see it. Then it will grow back and you have to do it again and again. That is why most people that use tablets have to add pool store "shock" every week or two..

Out process is called a SLAM and it is NOT a one time deal.. It is a process that actually kills all the algae.



I have three pools, I have had them all for about 10 years.. In all that time, I have not added a single bag of Pool Store shock and I never get algae.

Thanks,

Jim R.

 

[RLP]

Your FC may not be "high". It depends on your cya.

My cya is 70, I keep my FC between 8 and 9.

 

[kcassidy0772]

Is there a liquid chlorine brand you can recommend? I probably have to order online because pool stores around here seem to only sell the pucks. Any liquids sold are shock.

 

[skimmerswimmer]

I'm on Long Island. Ocean State Job Lot is where I get my 12% liquid Chlorine. It's called pool shock...it is sodium hypochlorite.

https://www.oceanstatejoblot.com/liquid-pool-shock-1-gal/product/97194

At the start of the season, I purchased 10 cases (40 gallons). I use a Stenner pump on a timer and 15 gal tank.

As others have said...get the TF100 testing kit with a speed stir and read up in the pool school part of the site. Without knowing your CYA, it's hard to know what your chlorine level should be. The pool stores typically don't understand the relationship between FC and CYA, but it is the most important one to know when owning a pool and keeping it "trouble free". Refer to this chart for your target chlorine levels:

Chlorine/CYA Chart

EDIT: You will find a simplified and standardized version of this chart at Pool School, Chlorine / CYA Chart. Chlorine/CYA Chart by Chemgeek FC = Free Chlorine in parts-per-million (ppm) CYA = Cyanuric Acid in parts-per-million (ppm) CYA ........... Min FC3 ..... Target FC ...... Yel/Mstrd...

www.troublefreepool.com

 

[RLP]

So liquid chlorine is a.k.a bleach. A.k.a. Shock. It is all sodium hypochlorite.

it is available in different strengths. 12.5 is what you see in the blue "carboys" at the pool store. It is available at most home center as well. Pool essentials is a popular brand.
just make sure it doesn't have any additives.

Liquid Chlorine - Further Reading

www.troublefreepool.com

 

[kcassidy0772]

Thanks! I was under assumption that liquid chlorine was something different than typical liquid pool shock sold in stores. Another question though, how can I tell what additives it may have? For example the liquid pool shock I buy says sodium hypochlorite-10%, “other ingredients”-90%.

 

[RLP]

The other 90% is water.

You dont want anything with fresh scent, or choloromax,etc.

 

[Newdude]

how can I tell what additives it may have?

Stay away from 'household bleach' and you'll be fine. They all have 'chloromax technologies', scents, or are splashless. It's all polymers that will cause foaming after too much is used.

It's also 5% or 6% and much less bang for the buck.

Walmart has pool essentials chlorinating liquid (10%) in the pool aisle for $5.67 a gallon.

 

[Mdragger88]

Is there a liquid chlorine brand you can recommend? I probably have to order online because pool stores around here seem to only sell the pucks. Any liquids sold are shock.

Liquid “shock” is sodium hypochlorite- aka - liquid chlorine/ unadulterated bleach .

 

[Mdragger88]

Thanks! I was under assumption that liquid chlorine was something different than typical liquid pool shock sold in stores. Another question though, how can I tell what additives it may have? For example the liquid pool shock I buy says sodium hypochlorite-10%, “other ingredients”-90%.

That’s what you want- the 90% is water.
Select 10% bleach in
PoolMath to calculate amounts.

 

[Mdragger88]

Also, don’t use anymore “non chlorine shock” it is mps & can read as cc’s on the test.
Fc (good stuff) + cc’s (bad stuff) = TC
How are you currently testing the water?

 

[kcassidy0772]

Also, don’t use anymore “non chlorine shock” it is mps & can read as cc’s on the test.
Fc (good stuff) + cc’s (bad stuff) = TC
How are you currently testing the water?

OMG. All over then place now. I already had a liquid test kit, Poolmaster 5-1. I also had a test strip one, forget the name right now. A few weeks ago I bought a different test strip one called Aqua 7-1. It has a app where you take a picture of the strip and it gives you the actual PPM numbers. And you can compare colors to the chart. I have ordered your recommended TRP test kit yesterday. In the meantime, any thoughts on which of the 2 I have used ?

 

[RLP]

It has been found that test strips are not accurate. We do not use them or rely on them to provide advice.

Taylor reagents are the gold standard for testing. You will know exactly what is happening in your pool.

It is your pool and you cant test it with what you want, but we can't provide advice Based on test strips.

post up the results when you get the kit, we will help you get your pool TFP clear.

How Clear is TFP Clear? Let's See (Pics Only Please).

How clear should my water be? A very common question. Here is mine on a calm morning where I could finally vacuum. Yes I know, I'm still manually vacuuming. It took me 7 years to finally get an SWG, I'm working on a robot. :) So now let's see your water clarity.

www.troublefreepool.com

 

[kcassidy0772]

Just found out my test kit arrived at my house, so when I get home from work tonight I’ll finally be able to test and post results. Since Saturday afternoon, I’ve been adding 5ppm of liquid chlorine a day and brushing and cleaning filter cartridge everyday while I wait for test kit. I have a question about what I’ve been seeing. Right now, my pool cloudiness has improved, but still very cloudy. I can see the bottom now no problem, but it’s that “milky white” cloudiness. My question is about algae. Although I don’t see any algae in the pool, everyday when I take my cartridge out to clean, the cartridge has evidence of green algae. How common is that? In the past, if I had algae it would suspend at the bottom of the pool. Even when I shocked heavily last week, there was no algae falling to bottom of the pool for me to vacuum out.

 

[RLP]

You could certainly have an algae problem that is not visible.

we will be waiting for your test results.

 

[Mdragger88]

Just found out my test kit arrived at my house, so when I get home from work tonight I’ll finally be able to test and post results. Since Saturday afternoon, I’ve been adding 5ppm of liquid chlorine a day and brushing and cleaning filter cartridge everyday while I wait for test kit. I have a question about what I’ve been seeing. Right now, my pool cloudiness has improved, but still very cloudy. I can see the bottom now no problem, but it’s that “milky white” cloudiness. My question is about algae. Although I don’t see any algae in the pool, everyday when I take my cartridge out to clean, the cartridge has evidence of green algae. How common is that? In the past, if I had algae it would suspend at the bottom of the pool. Even when I shocked heavily last week, there was no algae falling to bottom of the pool for me to vacuum out.

Cloudy water generally = algae even if its not green. It’s dying but it ain’t all dead yet. Don’t worry, you’re about to methodically eradicate it !

 

[RLP]

Once you're done with the slam, your pool will by crystal clear beyond belief, and sparkle like a diamond.

it will be easy to maintain, liquid chlorine, maybe a little baking soda, muriatic acid. Thats about it.