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Thread: 0 Chlorine, all else ok? No chemicals added - help pls!!!

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    0 Chlorine, all else ok? No chemicals added - help pls!!!

    Hi everyone! I have been reading and reading and haven't run across this exactly - apologise if it is here and I haven't found it!
    We just filled a 15x36 intex vinyl pool (filled it about 3/4 of the way as it sloped a bit and it's just to teach my 6 yr old twins to swim) last night and I have tested the water a bit ago. I used the HTH 5 tests kit. THe readings are:

    Ph = 7.3-7.5 ish
    CYA - 30ppm
    Alka = 150ppm-ish
    Hardness = about 30 as it turned purple and not red with first drop of tester solution and took only 3 to get to a darkish blue
    Chlorine = 0

    THe 0 chlorine is throwing me off a bit. Our town water "stopped" using it so this might explain why it's 0 but my question is, do I need to raise it? From what I have read, it sounds like all other stuff is fine and calcium is not an issue due to the vinyl....

    I have added nothing at all to the pool. Should I still shock it and add bleach or just shock it and dive in tommorow? IT's about 3,300 gallons I suspect

    Thanks much!
    Maggie and her guppies
    21x40 - 28000 gal Kidney w/swimout, bench, Aqua Comfort Heat Pump, AquaRite Plus SWG, LED, White plaster/blue tiling, Cartridge Filter, 1hp pump, Polaris 380

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    JasonLion's Avatar
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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    You should be adding chlorine every evening. Bleach is a good source of chlorine. You might want to read BBB for Beginners, in the Pool School area. It has lots of good background information.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Read "ABC's of pool water chemistry"....it's in "Pool School" above.

    Chlorine is mandatory for your pool.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    THanks for the replies!!!! The pool was just filled last night and it was so late that we didn't add anything at all. We thought we'd let it sit today and then run the filter when we came home from a father's Day celebration so we'd be around in case we messed it up

    I know it needs chlorine due to it being 0. I reckon about 4 cups of the 6% chlorox (unscented) bleach. But is that all it needs? I'm so scared to raise the CYA and then have to dump it (as I have read about) Also, I know that once I chlorinate it, I will then have to test it later in the evening for all levels because the chlorine might change the ph, cya, ta etc... right?

    I'm going to do all of this in the morning because it's very dark and late here and cold now too!

    Thanks so much again. I think I mostly know what to do, just scared to do it and wind up wasting all the water!

    Maggie & the guppies
    21x40 - 28000 gal Kidney w/swimout, bench, Aqua Comfort Heat Pump, AquaRite Plus SWG, LED, White plaster/blue tiling, Cartridge Filter, 1hp pump, Polaris 380

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    JasonLion's Avatar
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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Your numbers look fairly good. You said CYA was already 30, which seems unlikely if you just filled it. With most everything except chlorine it is best to add perhaps 2/3rds of what you think you need, let it mix in, and then retest to see where that got you.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    I have to say CYA is 30 because try as I might, I couldn't understand the "disappearing black dot". It seemed to have dissappeared only when the tube/vial was full.....

    And yes, the water has been sitting now for about 30 hours or so - the weather has been about 4 hours of straight sun during yesterday and today was very overcast. It's sparkling still, very little debris on the bottom and the filter has been running for about 8 hours now.

    So tommorow I will start the filter again, add the chlorine, retest at night to all values and then go from there. I have borax and baking soda all on hand and at the ready I just need to get over the "fear" of messing it up!

    Thanks again for being so helpful!
    Maggie & the guppies
    21x40 - 28000 gal Kidney w/swimout, bench, Aqua Comfort Heat Pump, AquaRite Plus SWG, LED, White plaster/blue tiling, Cartridge Filter, 1hp pump, Polaris 380

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    I'm a newbie here so take my opinion for what it's worth. But I think if you have to fill the tube to make the dot disappear, you have no CYA in your pool. The numbers get lower and lower, approaching zero, as you fill the tube.

    Steve
    24' Round Above-Ground Pool, 13500 Gallons
    Triton Meteor Sand Filter

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    JasonLion's Avatar
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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    If the dot completely disappears when the vial is full you have the CYA level listed at the top of the tube, either 20 or 30 depending on which tube you have. If the dot never completely disappears then the CYA level is called zero, though it might actually be between 0 and 15.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Well after 4 cups of Chlorox (regular kind, with only the 6% whatever the chlorine is called and nothing else) this am at 8:00am - I tested at 2:10pm and the water is at Chlorine 4, ph is still 7.3 ish, the Alka is about 80 and the CYA is *I have no clue* because now I see the dot always...

    DO I have to worry about CYA if I'm just using bleach? I know it helps to maintain chlorine levels and better chlorine efficiency but as long as I test and add chlorine, won't it be ok?

    Is the pool set or should I add anything like the shock & swim and other stuff that came in a Pool Basics kit we got at BJ's?

    It seems like I should not have to do anything at all - just test daily and dump in a few cups of bleach nightly...

    Thanks again so much! Now we're just waiting for the weather to warm up again!
    Maggie
    21x40 - 28000 gal Kidney w/swimout, bench, Aqua Comfort Heat Pump, AquaRite Plus SWG, LED, White plaster/blue tiling, Cartridge Filter, 1hp pump, Polaris 380

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    You really need to add some CYA... Look at it this way. You add your bleach at night so it can work without getting burned off by the sun. Morning comes, and the sun hits the pool, and the guppies hit the pool, and pretty quickly your guppies are swimming in an unsanitized pool! There are other pathogens that chlorine kills besides algae, many of which reside on the human body!!

    So add that CYA! If you are not using dichlor or trichlor, you will not run the risk of too much.

    8000 gallon 20' x 48" round vinyl frame pool, 12" sand filter (don't have the specs on the pump), TF100 test kit
    Handy Links: PoolMath, TF-100 Test Kit, Pool School, CYA-Chlorine Chart
    "Shock" is a process, not a product!

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Please read this sticky
    http://www.troublefreepool.com/categ...ater_chemistry

    It talks about why you need CYA, otherwise you will lose too much chlorine because of sunlight during the day.

    There are a couple of things you need to know with CYA. It takes a week to dissolve, so after adding it, wait a week before testing for CYA levels.

    After you add CYA, you will need to maintain higher chlorine levels.

    Use the Pool Calculator to help figure out how much CYA to add, and how much bleach.

    BTW, the people here (I am not including myself in this ) are very smart and helpful. Listen to them, and you will have a clear, blue pool.

    Good luck
    Randy
    20,000 gal fiberglass pool, Raypak 266k BTU Lo Nox gas heater, Purex 2048 48 sq ft DE filter, 1.5hp pump. iWave wireless remote, Pulsafeeder chlorine pump, Safety cover on most of the time

    seperate spa, with own pump, cartridge filter, Teledyne heater

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Oh my! I never thought about the little guppies and their own "algae"! They probably have lots of that! Also, I assume the sun will come out again around here so that will deplete the chlorine too!

    So I'll get some of the CYA and just keep adding the bleach and then adjust the amount once the CYA is at an appropriate point. The stories of dumping due to too high CYA just have scared me a bit so I thought if I could get away without using it, I'd try! Granted, if we needed to dump, dumping about 3300 gals is not too big of a deal but the high water bill will send hubby to the hospital!

    randytsuch, you're right on! I've been reading and reading here and it's amazing how much everyone knows! I think I know enough now and feel confident that I just need to follow a BBB and not get sucked into $$$$$ for things I won't need from a pool store (not to say they all might want to rip me off but you know what I mean!)

    Thanks again to everyone! I'll post a picture of the lopsided pool and the soon-to-be-swimming guppies in a few weeks.

    Maggie & the guppies
    21x40 - 28000 gal Kidney w/swimout, bench, Aqua Comfort Heat Pump, AquaRite Plus SWG, LED, White plaster/blue tiling, Cartridge Filter, 1hp pump, Polaris 380

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    Butterfly's Avatar
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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Hi Maggie,

    You've gotten lots of good help so far!

    Here's a visual for the CYA test that helped me 'see' the dot disappear

    http://www.taylortechnologies.com/Chemi ... ntentID=44
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Joyce, that's very helpful. Thanks for posting that.

    Steve
    24' Round Above-Ground Pool, 13500 Gallons
    Triton Meteor Sand Filter

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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    WOW! That's how the dot disappears! Definately NOT how I thought it did Thank you so much!
    21x40 - 28000 gal Kidney w/swimout, bench, Aqua Comfort Heat Pump, AquaRite Plus SWG, LED, White plaster/blue tiling, Cartridge Filter, 1hp pump, Polaris 380

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    Butterfly's Avatar
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    Re: 0 Chlorine, all else ok? No chemicals added - help pls!!!

    Quote Originally Posted by maggiem
    WOW! That's how the dot disappears! Definately NOT how I thought it did Thank you so much!
    Quote Originally Posted by ssmith1627
    Joyce, that's very helpful. Thanks for posting that.
    You are both welcome
    TFP Moderator TF100 Test Kit TF100 TestKit YouTube Channel PoolMath
    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

    ~ One should not use a sledge hammer to swat a mosquito. ~

    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

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