CYA high with some algae...

[eugchen]

12,000 chlorine pool, been using the pucks for about a year now. i know, i know, CYA can go up, i have now discovered, thereby needing higher levels of chlorine. i know the ideal solution is to empty part of the pool to get rid of some of the CYA. im wondering if there are any other options besides this that anyone else has had luck with. starting to see some yellow/green spots in corners, nothing horrible, but i can see it starting to proliferate.

i dont have the test kit that TFP members like, i will get it soon. so in the meantime, took pool water to Leslies and this is the data reported

FC - 4.45
TOTAL CHLORINE - 4.45
PH - 8
TOTAL ALKALINITY - 65
CALC HARDNESS - 216
CYA - 115
PHOSPHATES - 453
TDS - 700

i saw this product while at leslies. does this work at all? or is the only option to empty pool and start using liquid chlorine?

 

[YippeeSkippy]

Hello! Welcome to Trouble Free Pools... just sorry its under these circumstances.

I'd tell you to not waste your cash on that product. We've yet to hear of any positive results...maybe some small minimal difference but not near enough to justify the cost.

You're going to have a green pool any day now with pucks, and assuming those results are even a pinch correct. *And we assume they are not).

Consider ordering that test kit....either the K-2006C from various online sources, or the TF-100/Pro from www.tftestkits.net

Until then I would can the pucks and use a gallon of Liquid Chlorine daily and brush all around. That may buy you a bit of time.
You understand I guess that high CYA requires even higher than normal free chlorine levels to avoid algae?

Maddie

 

[eugchen]

hi maddie---im also reading that products like that one dont work, so ill avoid them.

i will start using liquid chlorine---is liquid household bleach the same? or do i need to add more of the bleach to equal the chlorine?

im thinking at some point i will have to drain some of the pool and add fresh water. how will i know how much to drain?

 

[PoolStored]

Bleach is typically 6%. If you use bleach, make sure NO splashless, fragrances, clorox (any chlorox bleach), fabric softeners....nothing, just bleach.

Yes, you will have to add more bleach than liquid chlorine. Which is better? Depends on the price. Pool math has a "Bleach $ Calculator" to help you choose based on price. Link-->PoolMath

CYA is 1:1. If your CYA is 115, draining 50% of your pool will leave you with CYA 57.5.

However, you don't want to drain the pool. Use no drain water exchange here:

Draining - Further Reading

www.troublefreepool.com

 

[KJB1]

$80 is a lot of water.