Pool is 32' x 13', sort of curved rectangle/trapezoid. 3' shallow to 10' deep. 18000 gallon I think with 500 gallon spa attached.
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Pool is 32' x 13', sort of curved rectangle/trapezoid. 3' shallow to 10' deep. 18000 gallon I think with 500 gallon spa attached.
What is your K2006 CYA reading? If 100, your actual CYA may be higher. If 100, try a dilution test to determine your actual level. Mix 1/2 cup distilled water with 1/2 cup pool water, and run the CYA test again. Multiply the result x2. Post your results, please.
The cya tests between 90 and 110, given how the drop test is a little fuzzy
*Which* Taylor kit?Quote:
Originally Posted by Wilco
If you have a DPD color match (K2005, etc) those are USELESS for diagnosing "no chlorine" problems. If you have a K2006, do the overnight bleach test, but test with BOTH the K2006 *and* an OTO drops kit. If you do NOT have the K2006 (or K1515) use only the OTO kit.
But . . . use an OTO kit no matter what!
I have the 2006, I don't have an oto kit. Sounds like it's better for routine cl testing/management.?
An OTO/Phenol Red kit (yellow and red drops) is useful for quick daily checks. It is what I use most days and then use the K2006 once a week or so. An exception is of course, if I have need to shock the pool and need to be able to test higher than 5ppm of chlorine. In that case, the K2006 is needed.
OTO is not super accurate, but it covers the range from 0 - 50 ppm, and it's pretty much goof proof. The FAS-DPD test covers the same range, but it *can* be screwed up. The DPD color match (K2005) covers the range from 0 - 5 ppm, (0 - 10 ppm claimed, but few people can read the difference between a 5 ppm red and a 10 ppm red!) and there are multiple ways it can go wrong.
Good help, thx. Tested with kit (Taylor) after gallon of bleach last night and borax the day before. Now at 7.4-7.6 and cl is 5 ppm on Taylor, although correlates at 1-2 ppm on strip. Think I'm ok for a bit, but will get oto kit for use as well.
If chlorine levels hold overnight, but disappear during the day . . . your CYA is low. If your CYA testing is not indicating this, please watch the CYA test videos linked from the testkit page: http://pool9.net/tk/
My cya has consistently tested high, like 100. That is consistent with the history of previous owners using trichlor tabs exclusively. I thinkits more a product of the super hard water here not allowing chlorine to stay free. (?)