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Thread: I don't know how to test for FC

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    I don't know how to test for FC

    I don't know anything about pools either. I have a wal-mart pool. So here is my question that maybe someone can answer... I don't know how to test for FC according to my handy dandy test thing which only has pH mine is 6.8, my CL is 1.0, and my BR is 2.2. ( I test with the tester that has two slots, one measures CL and BR, the other pH) So if I get one of those floating chlorine things will my FC be alright. Also I did shock and stabilize my pool with chemicals but I don't know what to do now. I assume I need some 20 mule borax?? Also if I don't want to do the chlorine how do I go about using the bleach? I really appreciate your help on this one.

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    Join Date
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    Re: New and Dumb

    jc,
    look for the pool calculator. It helped me alot. Also, take you water to a pool store but don't buy anything. COme back here and put it in the pool calc and see what it says. Then ask again. One of these experts will help you.
    16500 IGP Vinyl liner Oval Shaped
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    JasonLion's Avatar
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    Re: I don't know how to test for FC

    Ignore the BR reading. That is only for bromine pools.

    The CL level is what we call TC or total chlorine. TC = FC + CC (free chlorine + combined chlorine). For normal day to day use CC can be assumed to be zero and FC will equal TC.

    Your first priority is to raise your PH up to something reasonable. 20 Mule Team Borax is a great way to do that. You need to be careful about amounts right at first, since you don't know what your TA level is. Add about 1/3 of what you think you might need, give it an hour and see how things are and continue adjusting from there.

    To know what to do next, you need a full set of water test results. The best thing by far would be to get your own top quality test kit. The TF-100 from TFTestKits.net is really good, see my signature for a link. The Taylor K-2006 is also good. In the mean time you should take your water to a pool store and get test results from them, as Rickey suggested.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    esim13's Avatar
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    Re: I don't know how to test for FC

    I second Jason on getting your own kit, as will everyone here. Personally I have the Taylor K-2006 kit. It might not be the best value but I love the color coordinated tops. It makes it soooo easy to test my water. At first I was very intimidated by the whole thing. I had my kit for a few weeks and was scared to use it. I laugh about it now.. Get the kit! It is a life saver. From there everything will fall into place if you find your routine and stick to it. Good luck and welcome to TFP!!
    10,408 gallon, 21' round, 52 in' deep AG, half in ground
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    Re: I don't know how to test for FC

    Welcome jcturner!

    Here's a good sticky for you to read. It deals with smaller pools like the one you have.

    pool-school/temporary_pool_guide

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    frustratedpoolmom's Avatar
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    Re: I don't know how to test for FC

    Read the article that Mag linked you too... alot of helpful tips in there.

    Did you use the chemicals from walmart, including stabilizer? How much did you add? Because if you added that, you may not want to use the tablets in a floater if your CYA level is in range - you'd want to use Bleach instead. Be wary if you are using the tablets from HTH brand - they contain copper - it can cause green hair.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: I don't know how to test for FC

    Quote Originally Posted by esim13
    I second Jason on getting your own kit, as will everyone here. Personally I have the Taylor K-2006 kit. It might not be the best value but I love the color coordinated tops. It makes it soooo easy to test my water. At first I was very intimidated by the whole thing. I had my kit for a few weeks and was scared to use it. I laugh about it now.. Get the kit! It is a life saver. From there everything will fall into place if you find your routine and stick to it. Good luck and welcome to TFP!!
    Definitely get your own kit.

    The TF100 has more of certain reagents you'll use a lot of, is in a clear case, and lacks two tests for pH balancing that the Pool Calculator can do just as good a job at.

    The K-2006 has instructions for all the tests on the inside of the lid, with bottles whose tops are the same color as the relevant test, and comes in an opaque blue case. It definitely has a CSI calculating widget, though again the Pool Calculator can do just as good a job of.

    I bought the K-2006 because I prefer my chemicals be protected from sunlight, I like the instructions on the inside of the lid, and my fiancee is less likely to object to it sitting on the kitchen counter all summer long.
    --
    13,500 gallon, 24' round vinyl AG pool, fully encircled by deck. Hayward pump, DE filter, and chlorinator (use is being discontinued), one skimmer, one main drain. Polaris 65.

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    Re: I don't know how to test for FC

    thanks for the advice I will get the 20 mule add some then take my H20 to a pool store to get it tested this week, thanks for the advice

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    Re: I don't know how to test for FC

    I got a test kit that test the alkality of the pool here are my numbers, I plugged them in but wanted to double check with someone that knows:

    Chlorine= 0.5

    pH= 7.2

    TA= 30

    I have a medal(sp) framed vinyl pool from wal-mart. The liner and sides are all one piece, my filter have the cartriges you replace every 14 days. It is 15ft around and 48 in deep. It holds 4440 gal of H2O. I really do appreciate all of your help Thank You.

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    frustratedpoolmom's Avatar
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    Re: I don't know how to test for FC

    Did you read this article?
    Quote Originally Posted by 257WbyMag
    Here's a good sticky for you to read. It deals with smaller pools like the one you have.
    pool-school/temporary_pool_guide
    What are you using to add chlorine to the pool?

    You need to add Baking Soda, 3 lbs of it. Pre dissolve it in a bucket of pool water and pour it in to the return flow while the pump is running.

    Keep in mind your cartridges - they can go 2 weeks but you should hose them off every 3-4 days; also if you develop green or cloudy water then replace it more often.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: I don't know how to test for FC

    I looked at the article, but they don't have my pool size, I don't have an infatable pool. I can actually keep this one up all year according to the instructions included. I do appreciate your help and I will remember to hose off the filter cartridge every 3 days. Thanks again for your help Oh I am using a floating thing that I put chlorine tabs in. I can smell the chlorine in the water, but I don't know why it isn't registering??

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    Re: I don't know how to test for FC

    There are a couple of reasons why you might be seeing only 0.5 chlorine reading. One is that there is something in the pool, like algae, that the chlorine is killing off. So, it's being used up almost as fast as the tabs dissolve.

    You could try this: Add about 3 cups of regular unscented bleach (like Clorox) while the pump is running. Give it, oh, 20-30 minutes to circulate, then try testing chlorine again. See if that registers.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    frustratedpoolmom's Avatar
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    Re: I don't know how to test for FC

    The article applies to pools like yours too, not just the inflateable ones. It's specifically geared towards pools of all types that are less than 5,500 gallons.

    How are you adding chlorine? What is your CYA level?
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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