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    Aeration / CYA level in SWG pools

    I have two different questions I'm hoping someone can shed light on for me. First is regarding using aeration to raise pH: Is it true that aeration only raises pH up to about 7.5, then has little effect after that? I remember reading that in a post here. If that is true, why do SWG's raise...
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    Input on advice from Jacks rep?

    I talked to a Jacks Magic rep the other day about a staining issue one of my customers was having and he told me something I never thought of, and wonder if there is truth to it. I told him I was having the customer first check to see if the stain was organic by using a trichlor puck and he...
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    Corrosion question

    One of our customers got back from up north and I tested his water. He had a Free Chlorine level of 25 with 0 CYA. I understand this to be extremely harsh and we had the tech that was responsible for maintaining his pool immediately correct the CYA. This is a salt pool mind you. He came back...
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    non chlorine oxidizer question

    When would it be beneficial to add a non-chlorine oxidizer to your pool and why? Curious about the appropriate usage of it.
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    TA reading with high CYA question.

    Hoping one of the experts can help me out with this question. I work in the industry and test 100+ pools a week. I've noticed when I get a CYA level that is way over 100 the TA test is pretty much useless. I'll retest TA 3-4 times with a high CYA and get different results every time...
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    Alkalinity in a vinyl pool

    Was hoping someone could clear this up for me. I work in the industry and the powers that be recommend an alkalinity level of 120-140 ppm for a vinyl pool. Is there any merit to this? If so, why? I'm trying my best to give people advice based on the TFP methods so I'm trying to weed out the...
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    CYA question.

    I've heard on numerous occasions that CYA can lead to staining. Is this true? If so, why can it lead to staining?
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    Questions about servicing.

    Hello all, Im new to the forum, but have been reading posts for a while. I'm relatively new to the pool industry and I work in pool service (less than 4 months). I currently am employed by a franchise pool store that I will not name. I am an employee that is actually interested in helping...