Sick of Algae!

[PoolStored]

Use dry chlorine stabilizer, put it in a sock and tie it off. Hang it 6" or more out in front of a return. After about 30 minutes, start squezing and it will dissolve. If you can't get it all in the sock at once, do multiple batches.

 

[Tnt17tnt]

I had to get more chlorine today but I tested my FC about 12:00 and it was 2. The LC I’m buying says 10.5% but the store says thats what they guarantee but it’s likely 12-13%. According to pool calculator, to get my FC up to 10, I needed to add almost 2 gallons of 11% LC. Knowing that is probably too much, I added half of that, 1 gallon. Checked FC after 15 min or so and it was 8. So 128 oz increased FC by 6ppm. I added 24 more oz but have not checked FC but I assume it’s around 10 now.

How would you raise CYA? Maybe I should try bumping to 60? Use tablets or shock? Or can you add CYA only?

Pool Mate 1-2607B Pool Stabilizer... https://www.amazon.com/dp/B00IZOE4HI?ref=ppx_pop_mob_ap_share

One example. I have also used Home Depot and their stuff or Ace hardware (see pic attached).

Whats your cya? Last test appears to be 50 maybe 4 days ago. And your sure the volume for gallons is 26,000? For your pool math logs with FC.

 

[Mean Jean]

I've been fighting algae in my pool since April and I found TFP a few days ago. I've declared war on algae and I'm ready to have crystal clear water in my pool. I bought a Taylor K-2006C kit and it arrived this morning. Tested my Ph first and it was over 8.0, the color of red was darker than the highest reading. I tested CYA and it was over 100, maybe 120? Tested my FC and it looks like I have 29 ppm chlorine. I'm ready to SLAM but the first step is to get Ph to 7.2. How do I achieve this? I have a partial bag of Ph minus which is 92% sodium bisulfate. On a side note, I've added liquid chlorine to my pool the last two days just trying to increase the chlorine level and get a jump on it. I have a 30' round above ground pool which is about 26.5k gallons. Any help would be MUCH appreciated!

If you can afford to replace some of your water to get the cya down, you should do that. If you can't afford to replace enough water to get the cya down, you are going to have to put in so much chlorine to break though the cya stabilizer

 

[PoolStored]

If you can afford to replace some of your water to get the cya down, you should do that. If you can't afford to replace enough water to get the cya down, you are going to have to put in so much chlorine to break though the cya stabilizer

We are way past that point, and are well into slam....

 

[Tnt17tnt]

It looks like time pool is 23,000 gallons. Not sure how 3,000 gallons will differ much with Fc to Cya however. Was just doing some comparison of mine to yours was all.

 

[Mean Jean]

We are way past that point, and are well into slam....

I'm not sure that you understood what I meant. I mean that you're going to have to replace more than half of your water to get the cya down. Have you seen this cya chart on trouble-free pools site?

PoolSolutions Best Guess Swimming Pool Chlorine Chart

 

[PoolStored]

I'm not sure that you understood what I meant. I mean that you're going to have to replace more than half of your water to get the cya down. Have you seen this cya chart on trouble-free pools site?

I did understand you, but the OP already replaced at least 75% of the water; see page 2 of this thread. The OP has already completed SLAM and is running his pool now. His CYA is below 70 at this point.

No I have not read that, we don't mix TFP with other methodologies!

 

[Mean Jean]

I did understand you, but the OP already replaced at least 75% of the water; see page 2 of this thread. The OP has already completed SLAM and is running his pool now. His CYA is below 70 at this point.

No I have not read that, we don't mix TFP with other methodologies!

Ah! I definitely did not see that. Sorry, I'm finding it odd to navigate the threads. And I think that link is from the originator of this site. I've been following him for many years before it turned into this site Trouble-free pools

 

[PoolStored]

Ah! I definitely did not see that. Sorry, I'm finding it odd to navigate the threads. And I think that link is from the originator of this site. I've been following him for many years before it turned into this site Trouble-free pools

Ben Powell was one of the first to talk about the relationship between FC/CYA and had poolforum.com. Some folks left there and started TFP. Richard Falk, @chemgeek here, progressed the work significantly. The science and the understanding has evolved extensively here at TFP. There is much more known now, and it is housed here at TFP

 

[Mean Jean]

Ben Powell was one of the first to talk about the relationship between FC/CYA. Richard Falk, @chemgeek progressed the work significantly. The science and the understanding has evolved extensively here at TFP. There is much more known now, and it is housed here at TFP

Cool. Is there a new cya chart then? I would love that link

 

[PoolStored]

Link-->FC/CYA Levels

 

[jdfreeman]

Yes, I replaced about 75% of my water because CYA was 240. Now, my problem is feeding this pool enough LC so that the FC stayed at a 6-8 range. I think I literally need to add LC about 3 times a day because the sun and heat is eating it up so fast. CYA is 50 now but I’m thinking of taking the CYA to 60 and see if that helps the LC demand. It’s almost unrealistic to add so much LC every day. I like my pool but this thing is eating up money and time just to keep algae from growing. There’s got to be an easier way to keep and maintain a pool so that it isn’t a constant worry about how low your FC is getting. I’m going to take poolstored advice and bump the CYA.

 

[jdfreeman]

Use dry chlorine stabilizer, put it in a sock and tie it off. Hang it 6" or more out in front of a return. After about 30 minutes, start squezing and it will dissolve. If you can't get it all in the sock at once, do multiple batches.

Any particular brand of dry chlorine stabilizer you recommend? Or just ask for it at the pool store? I don’t want to put in a product that has other chemicals I don’t need.

 

[PoolStored]

Just get dry granular chlorine stabilizer. Walmart typically has it, so do some HD. Don't let them sell you liquid. %CYA.

 

[Mean Jean]

Yes, I replaced about 75% of my water because CYA was 240. Now, my problem is feeding this pool enough LC so that the FC stayed at a 6-8 range. I think I literally need to add LC about 3 times a day because the sun and heat is eating it up so fast. CYA is 50 now but I’m thinking of taking the CYA to 60 and see if that helps the LC demand. It’s almost unrealistic to add so much LC every day. I like my pool but this thing is eating up money and time just to keep algae from growing. There’s got to be an easier way to keep and maintain a pool so that it isn’t a constant worry about how low your FC is getting. I’m going to take poolstored advice and bump the CYA.

There's got to be a different reason why you can't maintain a 6-8 chlorine level other than CYA. A CYA of 50 is great. Don't go higher than that. There are chlorine pucks that do NOT have CYA in them that you could float in your pool. I use them when I'm gonna be away for a few days. Poolife NST Prime Tablets (20.2 lb) Amazon.com
Otherwise I do add liquid chlorine every other day. How often are you running your filter? I had to increase my hours or else the algae would start to grow.

 

[PoolStored]

Don't go higher than that.

In the deep south, there is no reason NOT to run a CYA of 60 or 70, if you can maintain proper FC for your CYA, and understand the implication if you get algae.

 

[Mean Jean]

In the deep south, there is no reason NOT to run a CYA of 60 or 70, if you can maintain proper FC for your CYA, and understand the implication if you get algae.

Then use the pucks with stabilizer in them for a short time so that there's a constant feed of chlorine and you're getting more stabilizer at the same time...

 

[PoolStored]

Then use the pucks with stabilizer in them for a short time so that there's a constant feed of chlorine and you're getting more stabilizer at the same time...

One can do that. However, it is harder to ensure that you have enough FC for your CYA with pucks. Liquid is precise. Tomato...tomaaato.

There are chlorine pucks that do NOT have CYA in them that you could float in your pool.

You can do this also, they have the same problem, ensuring enough FC. The also have the same problem as Tri-chlor, but with a different chemical, calcium. At some point, you get too much calcium in the pool and have to drain to reduce it.

 

[Mean Jean]

One can do that. However, it is harder to ensure that you have enough FC for your CYA with pucks. Liquid is precise. Tomato...tomaaato.


You can do this also, they have the same problem, ensuring enough FC. The also have the same problem as Tri-chlor, but with a different chemical, calcium. At some point, you get too much calcium in the pool and have to drain to

One can do that. However, it is harder to ensure that you have enough FC for your CYA with pucks. Liquid is precise. Tomato...tomaaato.


You can do this also, they have the same problem, ensuring enough FC. The also have the same problem as Tri-chlor, but with a different chemical, calcium. At some point, you get too much calcium in the pool and have to drain to reduce it.

I just think it's crazy to add cya at this point. Op could easily maintain an 8 chlorine level by floating pucks with cya in them. Might possibly need two floaters but I've done it. I've had experience with exactly this and solved it with more Puck floaters and more time on the filter.

 

[PoolStored]

I just think it's crazy to add cya at this point. Op could easily maintain an 8 chlorine level by floating pucks with cya in them. Might possibly need two floaters but I've done it. I've had experience with exactly this and solved it with more Puck floaters and more time on the filter.

It is easier, and more precise, to add CYA to reduce daily FC demand and chlorine additions in the deep south in the heart of summer.

Trying to figure out how many floaters and how many pucks to add to maintain FC and add CYA is confusing and difficult. I'm not saying it can't be done, I'm saying it is not the most trouble free approach...and that is what we are about.