Cyanuric acid

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1976colette
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Cyanuric acid

Postby 1976colette » Sat 18 Aug, 2018 12:56

Hey, first post here. I'm in canada, my season for pool is wrapping up. My cyanuric acid level is high. Closing in a few weeks but how can I prevent this next season? I'm using Poolboss Super Tabs and feel they may be to blame. Advice please on how to prevent thos in the future.
My water is clear, chlorine levels are fine.. just cyanuric acid.. ugh

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Teapot
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My Pool: 12 x 24 (45m3) liner pool, Triton TR60 filter with AFM glass media (Activate) and variable speed pump running 0.08HP
Location: UK

Re: Cyanuric acid

Postby Teapot » Sat 18 Aug, 2018 15:14

Don't worry this side of closing, over winter the cya may reduce. Best to measure on opening.
Switch to using a strong bleach, you must have a supply somewhere around you.
It doesn't matter what silly name they have almost all packaged chlorine except calcium hypochlorite is stabilised even shock.
1976colette
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Re: RE: Re: Cyanuric acid

Postby 1976colette » Sat 18 Aug, 2018 22:01

Teapot wrote:Don't worry this side of closing, over winter the cya may reduce. Best to measure on opening.
Switch to using a strong bleach, you must have a supply somewhere around you.
It doesn't matter what silly name they have almost all packaged chlorine except calcium hypochlorite is stabilised even shock.
Use bleach? For what.. sorry, I'm relatively new to the pool care.

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Teapot
Pool Industry Leader
Pool Industry Leader
Posts: 1131
Joined: Tue 17 Oct, 2017 10:52
My Pool: 12 x 24 (45m3) liner pool, Triton TR60 filter with AFM glass media (Activate) and variable speed pump running 0.08HP
Location: UK

Re: Cyanuric acid

Postby Teapot » Sat 18 Aug, 2018 23:57

Bleach is a source of chlorine for pools. Ordinary unscented thin bleach, cheap bleach is quite weak being around 3% chlorine compared to commercial grades 9.6 to 14% chlorine so the amount you need to add to get your free chlorine level up varies. How high is your CYA level?
Denniswiseman
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My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
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Re: Cyanuric acid

Postby Denniswiseman » Sun 19 Aug, 2018 01:50

Search for "Sodium Hypochlorite" you may be able to get it at 14.5% in 20 litres
Don't get to much as it degrades over time to a lower strength
Teapot
Pool Industry Leader
Pool Industry Leader
Posts: 1131
Joined: Tue 17 Oct, 2017 10:52
My Pool: 12 x 24 (45m3) liner pool, Triton TR60 filter with AFM glass media (Activate) and variable speed pump running 0.08HP
Location: UK

Re: Cyanuric acid

Postby Teapot » Sun 19 Aug, 2018 06:14

If you are in a French speaking part of Canada, try eau de javel

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