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Thread: CH test problems

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    CH test problems

    I have run my CH test several times with the same results. I add the 20 drops of r0010, 5 drops of r0011 and nothing happens the sample stays clear. I have tried it as both regular 25 ml and as a 10 ml test. I even tried it on plain tap water with the same result... Could it be that my r0011 has gone bad? The bottle does not appear stained and is less than a year old and has been stored properly along with the rest of the kit.
    Fc=6.5
    Cc= 0
    Tc=6.5
    Ph=7.5
    Ta=70
    Cya=30
    We have had a lot of rain and I have not added water in months, the pool is open all year and water is now at 55*
    17,000 gal, IG Gunite Diamond Brite plaster Kidneybean,w/7x11 tanning ledge& 3x5 swimout bench,244T 300lb Hayward Pro high rate sand filter(63 GPM) , Hayward 1Hp Super Pump w/3/4 hp booster pump, Polaris 280, Laars Lite 2 175k N/G Heater, Tf-100, Speed stir

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    Richard320's Avatar
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    Re: CH test problems

    It should turn pinkish at least. How can you add colored reagent to water and have it disappear?

    Double check the bottles. R-0010 is clear. R-0011 is purple and thick. R-0012 is clear.
    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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    AClogston's Avatar
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    Re: CH test problems

    I don't know if it's the same problem, but I have to add two drops of sodium thiosulfate when I test our bromine pool and spa to see the pink color when testing CH. You could try this and see if it helps.
    -Alex
    Outdoor Chlorine Pool/Spa (~100' from pump room):(35,000gal IG, plaster, 2 Triton TR-140 sand filters, 2 2HP pumps),(1,200gal IG, plaster, Triton TR-140, 2.5HP pump [circ.], 2 2HP pumps [jets])
    Indoor Bromine Pool/Spa:(24,000gal, plaster, Triton TR-100, 1.5HP SVRS-equipped pump),(3,200gal w/ 3 waterfalls, plaster, Sta-Rite System 3 cartridge filter, 3HP pump [circ.], 3HP pump [jets])

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    Re: CH test problems

    Quote Originally Posted by Richard320
    It should turn pinkish at least. How can you add colored reagent to water and have it disappear?

    Double check the bottles. R-0010 is clear. R-0011 is purple and thick. R-0012 is clear.
    Yes, I have double checked and you are correct. But the r0111 does not have any effect. It is as if it has never been added.... We have many lime plants near our house and plenty of calcium in the water and the test reagents show no change on the tap water tests...
    17,000 gal, IG Gunite Diamond Brite plaster Kidneybean,w/7x11 tanning ledge& 3x5 swimout bench,244T 300lb Hayward Pro high rate sand filter(63 GPM) , Hayward 1Hp Super Pump w/3/4 hp booster pump, Polaris 280, Laars Lite 2 175k N/G Heater, Tf-100, Speed stir

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    Re: CH test problems

    The R-0011 in my TF-100 barely turns my sample a very light shade of purple. It's hard to see, but the drops of R-0012 eventually will change the sample to a different color--in my case a shade of blue from the original light purple. I just tested my CH and I got 550, which has been stable. I'm assuming my drops are still good--the kit is a little less than one year old and the kit is properly stored.
    9,200 gal. Gunite Luna Quartz French Grey pool with spill over spa, two fountains on tanning ledge (rarely used)
    Pentair Whisperflo 2HP, Pentair CCP Cartridge 420 Sq. Ft., Polaris 280 with booster pump
    Pentair EasyTouch 4, RayPak LoNox 266k Natural Gas heater, Aqua Rite SWCG T Cell 9, Borates, TF-100 test kit

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    Re: CH test problems

    I'm assuming my drops are still good
    Yeah, as long as you get the color change, your test is working. Rob is apparently getting no initial color at all.....faint or not.

    Mine tests pretty faint, but nevertheless, discernible enough to give me a valid result.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Richard320's Avatar
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    Re: CH test problems

    Question for Dave/duraleigh: is the R-0011 an indicator, or a reactant? If it's just an indicator, couldn't someone use 8 drops, or 10, or 12, whatever amount to get a deep enough color?
    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: CH test problems

    We'll have to get chem geek or Jason in here to get a really good answer but his situation is very puzzling. Like you said, it seems his R-0011L is actually "disappearing" when he puts it into the pool water. I don't understand how that can be occurring.

    Meanwhile, the simple thing we have done is shipped OP another bottle of R-0011L to see if that fixes his problem. If it does, then we'll know more but right now, I am at a loss.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: CH test problems

    R-0011L Calcium Hardness Indicator: This solution should be a deep blue color. Any other color is an indication of replacement.
    http://taylortechnologies.com/product_f ... fe_web.pdf
    There could be some sort of interference from a contaminant. Perhaps copper or iron. Try the test using 10 drops of the R-0012 first and then do the test as normal. Count the original 10 drops as part of the total number of drops needed to change the color.

    Are there any floating pink or purple specks in the water after you add the R-0011?

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    AClogston's Avatar
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    Re: CH test problems

    I'd still try adding a couple drops of Sodium Thiosulfate (the clear drops used to start a TA test) to the sample before testing. When testing CH, my samples are always clear until I started doing this, then I can test as normal. I've also had success with this when the reagents were a year old or more.

    It might work for you.
    -Alex
    Outdoor Chlorine Pool/Spa (~100' from pump room):(35,000gal IG, plaster, 2 Triton TR-140 sand filters, 2 2HP pumps),(1,200gal IG, plaster, Triton TR-140, 2.5HP pump [circ.], 2 2HP pumps [jets])
    Indoor Bromine Pool/Spa:(24,000gal, plaster, Triton TR-100, 1.5HP SVRS-equipped pump),(3,200gal w/ 3 waterfalls, plaster, Sta-Rite System 3 cartridge filter, 3HP pump [circ.], 3HP pump [jets])

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    Re: CH test problems *UPDATE*

    Just wanted to provise an update to my problem and the solution. First, I want to thank Dave and Meg, at tftestkits.net, thanks for the wonderful customer service in helping me find my solution to this problem! Dave sent me a new bottle of R-0011L, I immediately noticed there was a color difference between the two bottles. My original r-0011L had a more reddish tint and was slightly transparent than the new bottle, which was a very dark purple. I re ran my tests and came up with great results! Problem solved!!
    New test results:
    Fc:4
    Cc:0
    Tc:4
    Ph:7.5
    TA:70
    Ch:280
    Cya:30
    17,000 gal, IG Gunite Diamond Brite plaster Kidneybean,w/7x11 tanning ledge& 3x5 swimout bench,244T 300lb Hayward Pro high rate sand filter(63 GPM) , Hayward 1Hp Super Pump w/3/4 hp booster pump, Polaris 280, Laars Lite 2 175k N/G Heater, Tf-100, Speed stir

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    Re: CH test problems

    I was just about to start a post about having the exact same problem. CH test used to work but last 2 times I tried it I got no color change when putting in the R-0011L. I thought I was doing something wrong...
    Currently trying to decided what to build in the backyard in Phoenix.

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    Re: CH test problems

    Quote Originally Posted by Brad Owen
    I was just about to start a post about having the exact same problem. CH test used to work but last 2 times I tried it I got no color change when putting in the R-0011L. I thought I was doing something wrong...
    Brad, look at your R0011 does it look like a dark red wine? That is what mine resembled. It did not stain the bottle but was obviously a lighter shade than the newer R0011...
    17,000 gal, IG Gunite Diamond Brite plaster Kidneybean,w/7x11 tanning ledge& 3x5 swimout bench,244T 300lb Hayward Pro high rate sand filter(63 GPM) , Hayward 1Hp Super Pump w/3/4 hp booster pump, Polaris 280, Laars Lite 2 175k N/G Heater, Tf-100, Speed stir

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    Re: CH test problems

    It does look very dark and almost like it has become more viscous. Not really thick, but it looks like it has some extra body to it. About the consistency of decent soup. A new bottle is on its way, thanks tftestkits!, so I'll be able to better describe the differences when I can compare the two.
    Currently trying to decided what to build in the backyard in Phoenix.

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    Re: CH test problems

    Taylor confirms a quality control issue with lot 4064E of reagent R-0011L. Reagent should be replaced.

    I beleive I saw a picture somewhere here on the forum of a bad sample of R0011L, can't find it now though. Anyone knows where it is?

  16. Back To Top    #16

    Re: CH test problems

    Just got my new R-0011L. Much better. Here is a comparison:




    If yours looks like the one on the right, time to get a new one. I was getting extremely high calcium numbers with the old reagent. I had to go back and up the PH and TA to get the CSI back in line.

    I'm pretty sure this has been covered before but just to confirm. My sample does not go from pink to blue it goes from pink to clear. That is still ok right? I've got the mag stirrer now so it not from lack of stirring.
    Currently trying to decided what to build in the backyard in Phoenix.

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    Re: CH test problems

    That's it exactly what my reagent looked like also! Glad to hear you got your problem solved also! Congratulations.
    17,000 gal, IG Gunite Diamond Brite plaster Kidneybean,w/7x11 tanning ledge& 3x5 swimout bench,244T 300lb Hayward Pro high rate sand filter(63 GPM) , Hayward 1Hp Super Pump w/3/4 hp booster pump, Polaris 280, Laars Lite 2 175k N/G Heater, Tf-100, Speed stir

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    Re: CH test problems

    Mine looks exactly like the one on the right. I bought mine last yeaer (April or May, 2011). Maybe it was a bad batch?
    18,000 gallon IG gunite freeform pool
    Intelliflo VS pump; Hayward SwimClear-C4030 425 sq ft filter; 4x suction PoolCleaner

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