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    LC % test?

    Hi - I suspect the remaining case of LC I bought a month ago might have dropped in potency. Is there a ratio of (non-chlorinated) water to LC I need to follow (using the DPD testing method)? I'm science tech-challenged, so if this is an idiotic question, pls be gentle...;) back story: The...
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    Low to little CYA

    Hi all - Been doing "TFP" since last spring & test chlorine via DPD method. We live in sw CT. Weather's been up & down. Water temp is down to 73 due to cooler weather; entire pool only gets sun from approx 9 am - 2 pm, with a tiny portion getting sun til 4. Hardly using pool (once a week, 8 &...
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    Old Pool Math?

    Hi all! Just opened our pool yesterday and can't seem to find the Pool Math chart that I used all of last year. I can only find apps for cell phone etc. I have a laptop computer I use. I'm sure it's here but have looked for 20 mins so gave up & decided to ask. Tks! (I also wonder where all my...
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    Taylor Phenol Red 0014 VERSUS HTC phenol red comparator compatibility?

    Hi! Can HTH phenol red be switched out for Taylor R-0014? If yes, which of my 2 comparators shown in attached photo should I then use? (I've already switched to using Taylor DPD/FAS as per TFP, but no Taylor K2006 kit because I still had good reagents to use up this year. However, now I see...
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    Combo of LC and lithium hypo to shock? Or not?!

    Can one use a combo of LC & Lithium Hypo to shock a pool if one has both, but not enough of one to get to needed shock level? My thought was to use PoolMath calculator at the bottom of PoolMath page for each form of chlorine to get to the shock level needed..if even possible. Tks!
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    WHOA! Can a shock for algae only lose 1 ppm overnite? Was it algae?

    Here's an odd one. After maintaining clear, sparkling pool since opened in April (new to TFP this year) this happened: Yesterday afternoon, after a sunless day, I noticed what looked like algae (on slant wall to deep end, on bottom here & there, & also on shaded slants of deep end walls). MUST...
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    CYA Standard Solution arrived today but dot still seen!

    Got my CYA Standard Solution today as I'm newbie for 6 weeks here & only just this week did I get that darn dot to disappear (at 40 mark) so all good, but wanted to see the Standard 50 dot test just to ensure I'm seeing correctly, but it's not working for me! I first tested my pool water (CYA...
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    Direction of 2 return jets during springtime with trees shedding...

    Joined TPP April, attended PS, bought test kit, switched from tri-chor to bleach, & use PoolMath, when needed. Did a successful SLAM. I've learned much! My question concerns return jet flow during spring when trees are shedding, and then after when shedding stops.. Our 2 returns (deep and...
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    SLAM level held for 12 hrs during day yesterday w/no added bleach, but OCLT -2ppm!

    Attended Pool School over the last week & using PoolMath & newly acquired FAS/DPD chlorine test kit. Performed 1st SLAM yesterday but failed OCLT. Can there be a "but" on the but? Yesterday there was no sun with air temp in the 50's. TFP Chart called for 10ppm SLAM & 1 gal of 8.2% bleach...
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    New to DPD/FAS testing & SLAMming. Questions re when to vac and CC part of test

    We are in the middle of our first SLAM & have 2 questions: 1. Does one vacuum Before, During or After SLAMing? Or all 3? (we have clear pool but several blobs of either dirt from ball field we live at edge of or it's brown algae (is there brown algae?) ;) 2. On the CC part DPS/FAS test: how...
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    HELP! FAS/DPD chlorine drop test came but has R-0600 NOT R-0003. Now what?

    I've been waiting all week for my Taylor FAS/DPD chlorine test kit & it came today BUT now this! I have HTC 6-way, so only needed this FAS/DPD so ordered the "kit" for it BUT seems someone tossed in R0600 rather than R-0003? Will this still work for the CC part of this test? I was happily...
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    FC is 1.5 TC is 5.0 how much lithium hypo or cal-hypo to shock & fix?

    Hi - I'm having hard time trying to avoid following Leslie's Pool's advice so want to shock newly opened pool that is clear and sparkling but has cc issue. Pool is 26000 gal. In-ground, vinyl liner with cartridge filter. FC is about 1.5 TC is 5.0 (according to Leslie's) PH is 7.6 CYA is low at...