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Thread: No FC but pool is crystal clear

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    Default Re: No FC but pool is crystal clear

    Thanks, I am only using strips but plan to get a better test kit after reading many threads here. Thanks the advice and I will take it to shock level today.

    On another note I thought I completed registration but have no permissions to do anything. Is there something I am missing?
    Last edited by PoolDoc; 06-10-2014 at 11:07 PM. Reason: enable signature
    28 ft round 14k gallon vinyl AG pool, 1.0HP Hayward pump, 16" sand filter. using hth 6in1 but soon to be a 2006

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    Default Re: No FC but pool is crystal clear

    We have had SO many new registrations in the past few days! That is good --- we are always glad to welcome new members ---- and bad --- as we are swamped right now trying to get them all processed. Dancing as fast as we can, though! Hang tight, hopefully it won't be too long and it is definitely worth the wait. This forum is so awesome!

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    Default Re: No FC but pool is crystal clear

    . . . membership updated.

    Whatever you do, don't let algae get started.

    While you wait on a K2006, go get a cheap local OTO / phenol red drops kit. Even better, some Walmarts have a Taylor-made HTH-6-way drops kit.

    Keep your chlorine in the dark yellow range, till you get the K2006 and can see what's going on.

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    Default Re: No FC but pool is crystal clear

    added 3 gallons last night. This morning 1 TAC 0 FC. I do not have a way to test CYA yet but it was 40 2 days ago. Ph is still 7.2. TA 100
    28 ft round 14k gallon vinyl AG pool, 1.0HP Hayward pump, 16" sand filter. using hth 6in1 but soon to be a 2006

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    Default Re: No FC but pool is crystal clear

    This is not a new pool, right? Do you have any idea what the CYA level was when you closed the pool last year?

    Sometimes, CYA biodegrades over the winter and causes a huge chlorine demand upon opening in the spring. I'm kinda wondering if this could be what is going on with your pool. The only way to fix this is to keep hammering it with bleach until it eliminates the byproducts that are formed. So, keep adding bleach. It may take a lot of bleach but it will eventually hold. If you are home today, go ahead and hit it again. You really don't want to leave your pool all day today with no chlorine in it.

  6. #6
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    Default Re: No FC but pool is crystal clear

    I do not know as i was a bad tester. I am only learning about the difference between FC and CC. I guess I have to keep adding bleach at night to shock level until it holds. When my k2006 kit arrives I should have some more accurate readings. The funny thing is the water is crystal clear.

    Thank You
    28 ft round 14k gallon vinyl AG pool, 1.0HP Hayward pump, 16" sand filter. using hth 6in1 but soon to be a 2006

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    Default Re: No FC but pool is crystal clear

    You are right that evening is the best time to add bleach but since you basically have none in there, if you can, it would be best to also go ahead and add some now. (Probably need more in the evening, too, to get back to shock level.)

    And yes, I know it seems funny that there could be an issue when your water is clear but sometimes you can't see stuff that is going on in there. Clear can be deceiving.

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