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Thread: What is the right chlorine level ?.?.?.?

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    What is the right chlorine level ?.?.?.?

    Hi peeps,

    Was always told that chlorine levels should be between 1 and 3 ppm.

    BUT

    The Pool Calculator near the bottom says 3 to 6 ppm....... Isn't that a bit high ?????

    Also, the frog says it can be between .5 and 1.0 ppm. (I know it sux but it what I got till the end of the season)


    What is the correct chlorine (bleach) levels ?

    Going to start with the BBB method, starting with liquid bleach as other levels are stationary.

    Have been adding granuals, but they are slow to disolve. How much bleach is equivalent to a scoop of the granuals. Each scoop is one ounce......

    FC 2.0
    TC 2.0
    PH 7.4
    ALK 90
    CYA 60


    Thanks
    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

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    Mod Squad Bama Rambler's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    With a CYA of 60 ppm, your FC should never fall below 5 ppm. The range is between 5 & 9 ppm. Adjust the FC so it never falls below 5 between additions.

    Spend some more time in Pool School. You'll learn that the recommendations you've seen don't take CYA into account. Do yourself a favor and dump the frog and start using bleach. Your CYA is at the upper manageable range and the frog will keep adding to it. It also adds metals to your water which will cause staining.

    Without knowing which "granules" you had it's impossible to tell you how much bleach is equivilent. You don't need to know that anyway. You should use the Pool Calc to figure how much to add based on test results.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: What is the right chlorine level ?.?.?.?

    Not using the frog with those expensive chloring back pacs........

    Been considering getting an Aqua Tril chlorine generator for next year....


    The label says:

    Contact Algae Killer and Superchlorinator
    100% Soluble <--- this one makes me laugh
    UV Stabilized


    Active Ingredient:
    Trichloro-s-Triazinetrione* - 99%
    Other ingredients: 1%
    Total: 100%

    * Provides 89% available chlorine
    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

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    Mod Squad Bama Rambler's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    That's trichlor. It constantly adds CYA. I'd stop using it and start using bleach. Cheaper and doesn't add things you don't want.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Richard320's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    Quote Originally Posted by hggbrew
    Not using the frog with those expensive chloring back pacs........

    Been considering getting an Aqua Tril chlorine generator for next year....


    The label says:

    Contact Algae Killer and Superchlorinator
    100% Soluble <--- this one makes me laugh
    UV Stabilized


    Active Ingredient:
    Trichloro-s-Triazinetrione* - 99%
    Other ingredients: 1%
    Total: 100%

    * Provides 89% available chlorine
    Don't!

    That is trichlor. For every 10 ppm Chlorine you add that way, you also add 6 ppm Cyanuric Acid. You're already at 60, which is plenty high even if you're in the sun all day long.

    The single most common root cause of problems here is too high CYA. Don't become another statistic.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Re: What is the right chlorine level ?.?.?.?

    Quote Originally Posted by Richard320

    * Provides 89% available chlorineDon't!

    That is trichlor. For every 10 ppm Chlorine you add that way, you also add 6 ppm Cyanuric Acid. You're already at 60, which is plenty high even if you're in the sun all day long.

    The single most common root cause of problems here is too high CYA. Don't become another statistic.


    That's why I want to switch to bleach ASAP....

    Just trying to get a feel on how much to add daily to keep my levels at around 2 ppm


    IF THATS RIGHT
    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

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    Richard320's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    Quote Originally Posted by hggbrew
    That's why I want to switch to bleach ASAP....

    Just trying to get a feel on how much to add daily to keep my levels at around 2 ppm


    IF THATS RIGHT
    It's pretty simple, actually.

    Measure your FC. Use Pool Calculator to tell you how much you need to add. Check it the next day. If it's lower than your minimum, raise the target number and do it again. Within a week or so you'll know how much bleach your pool typically uses every day. Then you can get lazy and just dump the usual amount in and only test it every other day if you want. By the way, with CYA = 60, you should never let FC dip below 5. If you target 2, I guarantee you'll have 0 the next day.

    It's mostly trial and error. Every pool is different. Some have a huge amount of organic debris blow in, some have more sun, some get used by large groups of dirty children.

    Just remember that FC loss is not a certain ppm/day. It's a percentage. So if you try to double the dose so you can skip a day, you'll come up short, because you'll lose more to sunlight at a higher FC level.

    Read the catchy slogan in my signature
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

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    Mod Squad Bama Rambler's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    Keeping your FC at 2 ppm is not right!

    With a CYA of 60 ppm it should never get below 5 ppm.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: What is the right chlorine level ?.?.?.?

    should I get the cya down.......the war department (wife) wants the FC down to .5-2 ppm
    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

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    Re: What is the right chlorine level ?.?.?.?

    Quote Originally Posted by hggbrew
    should I get the cya down.......the war department (wife) wants the FC down to .5-2 ppm
    Let me start by saying that I'm still VERY new to this, but I'll share what I've learned regarding the chlorine/CYA relationship. Basically you want enough CYA in the water to stabilize the chlorine, but not so much that the pool requires very high chlorine levels to be sanitized. Too little CYA with a lot of sun and your chlorine will burn off quicker than you can add it. At the levels you're talking about, you would need around 10ppm of CYA in the water which probably wouldn't be enough if you get lots of sun on the pool. Your best bet would probably be to lower your CYA to ~40ppm and maintain a target of 5ppm with a minimum of 3ppm. If you don't get much soon, you can probably drop CYA to 30 and run minimum 2/target 4 chlorine. You have to find the best number that works for you and your pool.

    I was at 50ppm CYA with my new pool, and with rain dilution it's gone down to around 40. I'm comfortable with where I am right now. I add about a quart of bleach every 2 days which gets me from around 3 back up to 5. I just got a Liquidator which I haven't set up yet, which will make life even easier! And to be honest, at 3-5ppm of chlorine, I think she'll be quite happy.

    Veterans, if I've given any misinformation, please correct me!

    Jose
    17x34' 13400gal freeform gunite IG pool, DB Tahoe Blue, cartridge filter, Rainbow 320, ClearO3 ozonator, 1.5HP 2sp Whisperflow, Intellibrite 5G Color LED, pavers, screened enclosure, Liquidator, 6x Fafco SunSavers, SolarTouch

  11. Back To Top    #11

    Re: What is the right chlorine level ?.?.?.?

    And to be honest, at 3-5ppm of chlorine, I think she'll be quite happy.

    LOL...... she has skin problems and keeps telling me if the FC goes above 1 or 2 she will not get into the pool....
    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

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    Re: What is the right chlorine level ?.?.?.?

    Quote Originally Posted by hggbrew
    LOL...... she has skin problems and keeps telling me if the FC goes above 1 or 2 she will not get into the pool....
    I doubt her skin would be able to tell the difference between a ppm or two of chlorine! Just add a few bags of softener salt to make the water feel extra nice and she'll love it!

    Jose
    17x34' 13400gal freeform gunite IG pool, DB Tahoe Blue, cartridge filter, Rainbow 320, ClearO3 ozonator, 1.5HP 2sp Whisperflow, Intellibrite 5G Color LED, pavers, screened enclosure, Liquidator, 6x Fafco SunSavers, SolarTouch

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    Mod Squad jblizzle's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    Did your wife have a bad experience at a public pool? Often they have 1-3ppm of FC with ZERO CYA ... that has much more active chlorine and is much much much more harsh on the skin and clothing than a pool with CYA and using the recommended FC levels.

    If you have a "pool smell" and you actually smell chlorine, than indicates that you have CC and thus are not using enough FC. The CC are was irritate the eyes and skin as well.

    She will not be able to tell if you stick to the recommended levels.
    Jason, TFP Moderator
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    Re: What is the right chlorine level ?.?.?.?

    Quote Originally Posted by jblizzle
    Did your wife have a bad experience at a public pool? Often they have 1-3ppm of FC with ZERO CYA ... that has much more active chlorine and is much much much more harsh on the skin and clothing than a pool with CYA and using the recommended FC levels.

    If you have a "pool smell" and you actually smell chlorine, than indicates that you have CC and thus are not using enough FC. The CC are was irritate the eyes and skin as well.

    She will not be able to tell if you stick to the recommended levels.
    Exactly. When I get out of my pool and dry off, I always feel like I just got out of the shower, not out of a pool. BBB for life!

    Jose
    17x34' 13400gal freeform gunite IG pool, DB Tahoe Blue, cartridge filter, Rainbow 320, ClearO3 ozonator, 1.5HP 2sp Whisperflow, Intellibrite 5G Color LED, pavers, screened enclosure, Liquidator, 6x Fafco SunSavers, SolarTouch

  15. Back To Top    #15

    Re: What is the right chlorine level ?.?.?.?

    Thanks guys,

    I'll give it a try
    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

  16. Back To Top    #16
    Mod Squad Bama Rambler's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    If she takes a shower in chlorinated water she's getting exposed to way more active chlorine than in the pool with 60 ppm CYA and 10 ppm FC.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  17. Back To Top    #17

    Re: What is the right chlorine level ?.?.?.?

    Quote Originally Posted by Bama Rambler
    If she takes a shower in chlorinated water she's getting exposed to way more active chlorine than in the pool with 60 ppm CYA and 10 ppm FC.


    WOW...
    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

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    Re: What is the right chlorine level ?.?.?.?

    There's a chart somewhere on this site, authored by chem geek I believe, which shows how chlorine is negated by CYA. I can't find it right now but I'll keep looking. It was a great chart!

    Jose
    17x34' 13400gal freeform gunite IG pool, DB Tahoe Blue, cartridge filter, Rainbow 320, ClearO3 ozonator, 1.5HP 2sp Whisperflow, Intellibrite 5G Color LED, pavers, screened enclosure, Liquidator, 6x Fafco SunSavers, SolarTouch

  19. Back To Top    #19

    Re: What is the right chlorine level ?.?.?.?

    OK....thanks,

    I'll take a look around also

    Vinyl 12 x 24 Extruder 3/4 in ground
    Hayward EC65 DE filter / Hayward Super Pump using one pony
    Frog system (maybe only temporary)
    Aqua Comfort Heat Pump
    Pool Rover Jr. (Best thing I ever bought)
    TF-100 test kit with speedstir

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    UnderWaterVanya's Avatar
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    Re: What is the right chlorine level ?.?.?.?

    Additional info:

    My son has excema and has dry dry dry skin. His skin is better - not worse after a couple of months of swimming in my 5-9ppm CYA 55 pool.

    Several people here have reported that adding Borates to the 50ppm level has helped with skin issues over and above the benefits of BBB on their skin. In other words - few issues maybe some with BBB for really sensitive people that went away when Borates were managed to 50ppm specifically.

    Something to think about.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
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