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i will when i get home but realize my chlorine use was consistently 6pmm and then one day was 18ppm and after that i see that the water WAS cloudy. if i didnt know the correct cya, i should have constant very high usage, not that the usage tripled from one day to the next. regarding effect on...

oh no! so i think i did it wrong. but it shouldnt make a difference, right? if anything my chlorine was too high, it should still kill the algae. but does anyone know the answer to the normal loss of chlorine rate and 35ppm?

hi, i have a 21k gallon pool, 60 cya and prone to mustard algae. so based on chart i try to keep my chlorine at about 10ppm. my pool was beautiful and crystal clear until one day i noticed tremendous chlorine loss - over the day i had to put in 18pmm of chlorine so it didnt drop below my...

I slammed to 28 this AM

i better change my signature to include my test kit. its the taylor k-2006 fas dpd. i was testing twice a day every day but then last few days weather on and off was so bad and there were thunderstorms when i was leaving to work or in the evening... so i think i missed some tests. but i tested...

that might be it. i only brush once a week maximum. i thought one time per week was the recommended. thank you.

If chlorine never dips below the recommended minimum (and is even much more than that) is it possible to get algae? because i got significant yellow streaking at the bottom of my pool and i brushed up clouds of yellow this morning and tested 1 CC, but i'm surprised because my chlorine levels...

i must have had algae when using so much chlorine past few weeks, because this wk, after completing SLAM at end of last week, my usage is more like 4. thank you for all your help. I didn't pick up on the algae because i was losing like 1ppm overnight and i thought 1 was still ok. but now, after...

i really think i completed it properly. i brought the level to 24ppm, brushed the pool, tested a few times a day and kept adding more chlroine as it dipped below 24ppm... day, night... kept testing till water was sparkling and clear. i am going to do another OCLT tonight to make sure.

during the day my pool is empty but in the evening my kids have tons of friends over. I thought it was the heavy bather load but then one cloudy rainy day the pool was empty and i still used that much. at some point i must have had some algae b/c i did lose chlorine overnight and i did shock...

i was using that amount and my pool was crystal clear and oclt came back fine. i will be doing one again tonight.

cya of 60 so i'm confused. if the more i put in the more i lose, how do i keep my FC from slipping below the minimum? i thought i'd just add more chlorine one time to get my morning levels higher so my evening levels would not be below recommended, but it didnt seem to work. i keep dipping below...

Will my pool always use the same amount of chlorine per day (barring changes in temperature, bather load and other external factors)? So for example, i typically have seen my pool use about 5-6 ppm of chlorine per day. so it starts at about 10 and falls to about 4.5-5ppm by evening. But when i...

i hope i'm not too late to add to this thread. so it seemed that while my chlorine use was high, it was possibly within the range of normal. the issue was that my FC levels should be between 7-9ppm for my cya of 60 and never drop less than 5 and adding 1 gallon of 12% chlorine, i kept losing at...

nothing in the pool, i did an overnight chlorine test a few night in a row. i have to read up more about the salt water generator option.

i saw estimates of normal chlorine use of 2-4 ppm so this seemed wrong. glad to hear i'm not the only one.

ok all. i tried again with your encouragement that the pool math HAS to work. originally i added once pump went on (about 9am) and it was sunny, so i was losing chlorine as i was adding. I got my pool paperwork and changed volume of pool the the exact 21,480 gallons on the calculator. 121 oz...

except i have the paperwork from the manufacturer, foxx pools, and it works for my alkalinity additions and always worked when i brought my water sample to the pool store. maybe i should try again over the next few days.

so my pool is clearly using WAAAAY too much! it is in FULL sun all day. how much of a difference does that make? is yours also?

i'm testing with taylor test kit 30-60 minutes after addition.

the chlorine is "shock it" by alliance trading in covington, la. googled telephone number, can't get through to anyone. called retail pool store and they are assuring me its new but have no information on the manufacturer. The numbers stamped on bottle say "20 143 0817 q1 1672-MA-1" Chances...

hi all - i'm pretty new to this website and based on help i received last year i am trying liquid chlorine for the first time. so far its a total flop! 1) according to PoolMath one gallon of 12.5% chlorine should add 6ppm of chlorine to my 21k gallon pool. but it does not seem to. i have been...

Thanks for all the input. i hope to try liquid chlorine next season. please let me know how the pool looks when you open it. when it says to have balanced water, i was not thinking of FC that was too high - i thought it meant proper TA, PH and FC at least target, no CC.

Thank you for this thorough review. Even after reading the SLAM article, all this discussion has really helped me understand all the points better. What was totally new to me was the need to test for CH and a better understanding of FC needed to SLAM, which i understood as a minimum and i...

The good news is that I vacuumed Friday afternoon and brushed. i didn't notice any yellow clouding up when i brushed, only a bit of brown/grey. So i am cautiously optimistic that i am done...

wow! thanks for all the info - which i will have to go through in more detail. but i want to very briefly respond to your ask about progress in water clarity etc. actually my water is crystal clear and i notice nothing on the bottom visually right now. Only when i brush do i see a little bit...

i appreciate the suggestion, but its not sounding right to me. i don't see anything on any other surfaces and i think i do recognize this as algae.

ok, i understand the risk of chlorine that is too high. but please explain - if normal target chlorine rates DOES kill algae then why did i have algae growing and spreading with chlorine levels waaay above target but below SLAM levels? and in response to my asking why i was not getting rid of...

also, are you indeed saying that i can adjust chlorine at 7am to SLAM level - not higher - and then leave during the day and let the chlorine drift below the recommended slam level? this will not allow the chlorine to thrive and regrow? what is recommended when you are leaving home for many...

i am happy to stand corrected. i did not realize AT ALL that going above the target by putting in whole bags of shock when i needed a chlorine addition was different than SLAM instructions. Its a new idea to me to measure my chlorine by the oz etc before adding and leaving open unused bags...