Recommended Levels?

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tomfrh
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Joined: Sun 29 Sep, 2019 22:06
My Pool: Concrete pool. 50,000L, Salt

Recommended Levels?

Postby tomfrh » Mon 30 Sep, 2019 02:23

Hi,

Is there a FAQ with recommended levels for pools?

I generally follow trouble free pool and would be interested to compare to this site's recommendations.


Denniswiseman
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Joined: Tue 06 Sep, 2011 05:48
My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: Recommended Levels?

Postby Denniswiseman » Mon 30 Sep, 2019 10:15

I would be inclined to go with TFP as there levels would be the same as here, albiet no two pools are identical
Wierenga
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Re: Recommended Levels?

Postby Wierenga » Fri 11 Oct, 2019 08:44

The levels can't vary a lot, can they?
Denniswiseman
Pool Industry Leader
Pool Industry Leader
Posts: 1397
Joined: Tue 06 Sep, 2011 05:48
My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: Recommended Levels?

Postby Denniswiseman » Fri 11 Oct, 2019 12:26

I doubt that they vary much between identical pools
I have a covered pool so my CYA is about 20 whereas an outside pool would be 40-50 or if you are using Trichlor/Dichlor would be higher
For every 10 ppm Free Chlorine (FC) added by Trichlor, it also increases Cyanuric Acid (CYA) by 6 ppm.
For every 10 ppm FC added by Dichlor, it also increases CYA by 9 ppm.
For every 10 ppm FC added by Cal-Hypo, it also increases Calcium Hardness (CH) by at least 7 ppm

The higher CYA will need more chlorine to be effective
If you have a waterfall, infinity edge or something that aerates the water your pH will rise so you will have to reduce it
Your fill water will also make a difference high or low calcium, iron
Your pool construction, plaster pools require calcium whereas vinyl and fibreglass don't
Do you get my drift?

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