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  1. B

    First results. First steps.

    Yesterday's test results: 10:30 AM: pH 7.9 FC 24 CC 0 CH 1000+ (I added 50 drops and stopped when not achieving any change in color at all) TA 300 CYA 85 Salt 4200 Added 2 1/2 gallons of 12.5% LC 2:00 PM: FC 23 CC 0 Added 3 gallons of 12.5% LC 4:00 PM: FC 15 CC 0.5 Added 5 1/2 gallons of...
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    First results. First steps.

    @kimkats and @Texas Splash Thanks for the advice and for inviting in those whom you expect to be authorities on the chemicals/chemistry. As to the last filter clean, this last was done 1 1/2 weeks ago and, since then, the PSI has increased about 10%, possibly in response to the clearing of...
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    First results. First steps.

    @ajw22 Midwest storms typically come with high winds, and as our pool is surrounded on three sides by trees, we are trying to prevent an inordinate amount of organic matter, possibly including branches, from entering the pool. We have seen the light after spending one week plus on this site...
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    First results. First steps.

    Continuing the SLAM saga, this evening about 3 hours after the last results(above), retesting revealed the following: FC: 5 CC: 0.5 The tested water sample, after “clearing” with R-087 reagent, was again tan, but minimally so(not as dark as the pic above). I added 8 gallons of 12.5% liquid...
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    First results. First steps.

    @TurbineTester From my review of a number of related threads, and from comments from the pros here, I’m afraid that our experience, not yours, is the outlier.
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    First results. First steps.

    Quick update to my last post.....5 hours have past since morning testing. Autocover is now open again (heavy rain today, so I had to keep it closed) It is now sunny. Water is much clearer than this morning. I was able to achieve a clear solution when FC testing. FC 33.0 CC 0.0 Salt level is...
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    First results. First steps.

    Sunday pool party was a success! Yesterday was spent SLAMMING all day. The salt level flexed between 3700 - 4500, much higher levels than before SLAMMING. Results as follows for each test: 1st Morning test: (10 ml) Pool water clear. FC 0.5 CC 2.0 pH 7.5 Added 9 gallons of Liquid Chlorine...
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    First results. First steps.

    @Texas Splash Thank you for your thoughts/advice. We have been using pool math for our calculations, assuming CYA of 80, to obtain the suggested amount of chlorine. Unfortunately, this has produced a FC level no where near 30(our goal has been 33) and despite testing sometimes as soon as 30...
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    First results. First steps.

    Pics from this morning...the pool sure doesn’t look like a swamp. I cannot comprehend where all the Chlorine is going! We have added 50+ gallons of 12.5% liquid chlorine after 7 bottles of 10% and several cups of dichlor(no frogabog no dichlor added since your caution:cool:)-all over about 8-9...
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    First results. First steps.

    @frogabog Above is from a 2018 document from our city regarding water quality. The detected range of total chlorine seems too low to account for the CC numbers we have been seeing. @frogabog and @aeh0603 I appreciate your thoughts about the dilution solution. I thought about the chlorine...
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    First results. First steps.

    @frogabog Simply trying to conserve reagents, especially as we anticipate, “any time now,” a bump to FC 30 and the need for 60+ drops to discover this. So a 1:1 dilution with tap water(presumed 0 FC, though we did not test to confirm) and no division by 2 after adding drops, should give us a...
  12. B

    First results. First steps.

    Purchased alcohol to clean test vials. Early afternoon, I added 8 gallons of liquid chlorine based on late morning testing (results posted in above thread) Re-tested one hour later: FC: 13.0 CC: 5.0 Then added another 6 gallons of liquid chlorine and tested an hour later: FC: 14.0 CC: 8.0...
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    First results. First steps.

    Completed full testing this morning, but did not have alcohol on hand to clean test vials. I rinsed them thoroughly with water prior to testing. @kimkats Here are my steps in doing the CC test: Put 10 ml water in Chlorine Only cylinder, added heaping scoop of R-0870 powder, swirled to...
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    First results. First steps.

    A little research suggests that a principal additive that will lead to false CC levels is monopersulfate. To my knowledge, we have not added this. Does anyone know if it is commonplace for pool stores to use this when opening pools. We have hired our pool’s builder and operator of our local...
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    First results. First steps.

    @mknauss I made the decision to SLAM instead of drain/exchange 3 days ago when I thought the CYA was at 80(upper limits of acceptable for SWG pool) and felt that SLAMing would be more time efficient, if more costly, than the d/e. Who would have thought that the CC would misbehave in ways that...
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    First results. First steps.

    Back from Menards, where we left some boxes of chlorine behind, as there is only so much room in the back of a small SUV. We just repeated a FC level(about 1 1/2 hour after last 5+ gallons of chlorine was added) and the FC level is 13.5. @mknauss Likely we will not be able to do complete...
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    First results. First steps.

    @aeh0603 A repeat CYA level is 90. I think this is more accurate as Lori and I were concentrating on the black dot the last(and first) time we did the study 3 days ago. Tonight, just a quick glance led us to the 90. If I understand the ammonia issue correctly, if we had the bug that chews CYA...
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    First results. First steps.

    Pool cover was closed last night due to threatening weather. Opened autocover in the morning and will continue to keep it open. Tested this morning then added 7 gallons of liquid chlorine post test. Results are as follows: FC: 3.5 CC: 3.5 pH: 6.8 Made another trip to Menards to purchase more...
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    First results. First steps.

    We can certainly repeat the FC test 30 minutes after adding the next chlorine, though it was my impression that more time is needed to allow for circulation to mix the chlorine evenly. As to the intended FC level, we are aiming to SLAM to FC 33 with CYA of 80. -Bryan
  20. B

    First results. First steps.

    Today's test readings: FC: 0.5 CC: 2.5 pH: 7.0 Sparkling clear water. Kept autocover open all day so the CC can outgas. Completed slamming with 9 gallons of 12.5% liquid chlorine. (no more dichlor for us!) @frogabog ....and the best advice ever was adding the adult beverage to the...
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    First results. First steps.

    We estimate that 6-7 hours passed between the am chlorine and the pm tests. Another trip to Menards tomorrow for more chlorine! Over the last 4 days, we have added 7 gallons of 10% and 12 gallons of 12.5% liquid chlorine(and about 8 cups of dichlor)! -Bryan
  22. B

    First results. First steps.

    Evening update-Lori thought we were aiming for a FC of 7, rather than SLAMming to 33, and so she added about 1.3 gallons of 12.5% liquid chlorine this morning. The result: A crystal clear pool! FC: 0.5 CC: 3 In response, she added the last of our liquid chlorine supply-3.7 gallons of 12.5%...
  23. B

    First results. First steps.

    Opened the auto cover this morning so the CC can outgas. Water is clear. Test results as follows: FC: 2.5 pH: 7.1 Should I continue to add liquid chlorine to raise the FC and/or add more Borax to raise the pH? Thanks in advance for recommendations. -Lori
  24. B

    First results. First steps.

    Water is slightly hazy(deep end is not absolutely clear). Pool smells fine. The only chlorine readings before today were from the pool shop, or, more commonly from test strips. Opened the pool in April, but payed little attention to it for a month due to low temps(air and water-we typically let...
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    First results. First steps.

    Until coming to this site in the last week, I did not recognize the CYA challenge associated with dichlor use. And then when I was under the impression of a low CYA, I thought it a good opportunity to use the dichlor on hand while searching for local sources of liquid chlorine. So much for...
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    First results. First steps.

    We used a Clorox branded dichlor on Friday and again Yesterday as we were aware of the very low chlorine(based on test strips) and not terribly concerned about increasing CYA, as a pool store sample suggested CYA of 10. One week ago, we added Proteam Phosfree(I believe I have the name right)...
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    First results. First steps.

    Well, that was disappointing. The latest numbers, following 7 gallons of 12.5% liquid chlorine, follow: FC: 1 CC: 5 pH: 7.2 I will have to pause the SLAM till tomorrow. Right or wrong, I have left the SWG going throughout. @gonfishin. We certainly see minerals/calcium buildup around...
  28. B

    First results. First steps.

    Received TF-100 yesterday and started testing this am after previously using up some dichlor with the intent of actually seeing some chlorine and bringing up CYA(based on very low values of both per our pool store and test strips). As evident from the testing below, didn’t need the CYA, and we...
  29. B

    Ciao from Minnesota!

    Thanks for the welcome. Yes. Yes. Yes. And yes. Started testing for the first time this am and am following now by beginning a SLAM. Numbers to follow in another thread.
  30. B

    Ciao from Minnesota!

    We are Lori and Bryan. Like many here, we have been underwhelmed by our pool store experience and are looking forward to implementing the approaches offered here. Thanks in advance for any help as we dive in to our trouble free pool! Now to find out how to include a signature with our pool...