Yes I did read that somewhere. There are sometimes different shades of pink. We will see what my levels are in the morning. Thanks for your advice everyone. I greatly appreciate it. Hope my overnight test goes well.
Please Help Me
- Thread starter dbabz31
- Start date
I have this morning's readings. It is now 650am.
FC=12
cc=<0.5
PH=7.1
TA=220
CH=100-125
CYA=90-110
So, what do I do next. I am guessing that I should aerate to raise my PH. Question is can I run my slide today to do that and for how long should I do it for? I will need to sleep today due to work, but wondering what I should do prior to going to sleep. I know that I should probably raise my FC a little also. My FC is over 10 whick means I am probably getting a false reading on my PH and that my PH is probably lower. Any input is greatly appreciated.
FC=12
cc=<0.5
PH=7.1
TA=220
CH=100-125
CYA=90-110
So, what do I do next. I am guessing that I should aerate to raise my PH. Question is can I run my slide today to do that and for how long should I do it for? I will need to sleep today due to work, but wondering what I should do prior to going to sleep. I know that I should probably raise my FC a little also. My FC is over 10 whick means I am probably getting a false reading on my PH and that my PH is probably lower. Any input is greatly appreciated.
Your numbers are looking good; As far as the slide is concerned, that will aerate the pool with no problem- you can run it as much as you want, just monitor pH daily while reducing the TA; you can take your time with this, just run the slide when you're filtering anyway, and let it gradually work down!
If you're confident in the CYA reading, FC of 10-12 is fine
If you're confident in the CYA reading, FC of 10-12 is fine
now here are my readings.
FC=6.5
PH=7.3
Is my next step to stop the aeration and get my FC back up to target level of around 13? And make sure that I test FC and PH daily, at night and adjust as needed? Also, once I turn my heater on, how will that affect my readings, if at all? thank you very much for all you help.
FC=6.5
PH=7.3
Is my next step to stop the aeration and get my FC back up to target level of around 13? And make sure that I test FC and PH daily, at night and adjust as needed? Also, once I turn my heater on, how will that affect my readings, if at all? thank you very much for all you help.
My other question is, while I am adjusting my TA, if I need to do that or not, if I am adding chlorine to maintain a target level of 13-14, how do I know that the PH is really the PH? What is my next step? Maintain FC, lower TA? thank you!
Reading through this and came up with a question and wanted to add a little info for the OP
First the question:
On 5/8 @ 6AM, FC was stated to be 40 then at 9PM it was ~12 and then 6AM on 5/9 it was again 12.
Is it really possible that it dropped from 40 to 12 in 15 hours?
That kind of amazes me ... where did it all go?
Second, a comment to the OP about how the CYA levels seemed not to drop. The problem comes from not replacing enough of the water at a time. Assume a 31,000 gallon pool and as you stated a truck load of 5,800 gallons. So each truck load replaces 18.7% of your pool, lowing the CYA level to 81.3% of its original level. Now also assume that your original CYA level was 200 (we really have no idea, but this is just an example).
So, if you replace your water 1 truck load at a time and then fill your CYA levels would drop 18.7% each time as follows:
starting at 200 after 1 truck and fill 163 after another truck and fill 132 then 107, 87, 71, 58, 47 which is 7 truck loads to get around 50
Now if you replace 2 truck loads at a time and then fill your CYA levels would drop 37.4% each time as follows:
starting at 200 after 2 trucks and fill 125 then 78, 49 which is 6 truck loads to get around 50
Now if you just replaced everything at once (assuming your water table and pocket book allowed it), you would have needed only 5.3 truck loads. Your CYA would have been zero, but all your green water would have been gone. And then you could have added the correct level of all chemicals to balance your pool.
So as you can see, the smaller the percentage of volume you change each time the more water you are required to add to dilute your levels.
Just a little FYI, that may have not been stated clearly (then again ... you may not have wanted the explaination
)
First the question:
On 5/8 @ 6AM, FC was stated to be 40 then at 9PM it was ~12 and then 6AM on 5/9 it was again 12.
Is it really possible that it dropped from 40 to 12 in 15 hours?
That kind of amazes me ... where did it all go?Second, a comment to the OP about how the CYA levels seemed not to drop. The problem comes from not replacing enough of the water at a time. Assume a 31,000 gallon pool and as you stated a truck load of 5,800 gallons. So each truck load replaces 18.7% of your pool, lowing the CYA level to 81.3% of its original level. Now also assume that your original CYA level was 200 (we really have no idea, but this is just an example).
So, if you replace your water 1 truck load at a time and then fill your CYA levels would drop 18.7% each time as follows:
starting at 200 after 1 truck and fill 163 after another truck and fill 132 then 107, 87, 71, 58, 47 which is 7 truck loads to get around 50
Now if you replace 2 truck loads at a time and then fill your CYA levels would drop 37.4% each time as follows:
starting at 200 after 2 trucks and fill 125 then 78, 49 which is 6 truck loads to get around 50
Now if you just replaced everything at once (assuming your water table and pocket book allowed it), you would have needed only 5.3 truck loads. Your CYA would have been zero, but all your green water would have been gone. And then you could have added the correct level of all chemicals to balance your pool.
So as you can see, the smaller the percentage of volume you change each time the more water you are required to add to dilute your levels.
Just a little FYI, that may have not been stated clearly (then again ... you may not have wanted the explaination
)Yes, I told my husband we would have been better off emptying the whole thing last fall, but as it is right now, I am still hoping for some help from mother nature in the next week. My water level is at minimum right now. I also do not want to go much lower than 100 because my pool gets full sun from 9am to sundown, so don't want have chlorine being used as much. I realize that the high cya will cause me to need higher FC levels to combat any algae, or at least higher target levels are needed. I am hoping that within the next week, my CYA levels will come down with some more rain. I just added some more chlorine to the pool about 30 mins ago to get it up to target level. I will work with TA and PH tomorrow morning. As far as how my FC could drop so much, I don't know but that is what I got. If anyone has an answer to that I would like to know also. There was a drop from this morning from 12 to 6.5 in about hours, so I don't know how much is used per hour.
Ok my numbers today are
FC=9 (was 10 last night at 9pm)
PH=7.3-7.4 ( not a pink color but more than the light orange)
Suggestions? It is supposed to be 80 today, so I think I will add some chlorine. Also, I think I will add some water because mother nature hasn't come through for us as far as adding water. Any input would be appreciated. Am I right in testing FC at night from now on and getting it up to target level? What about TA? Do I leave it alone? Thanks.
FC=9 (was 10 last night at 9pm)
PH=7.3-7.4 ( not a pink color but more than the light orange)
Suggestions? It is supposed to be 80 today, so I think I will add some chlorine. Also, I think I will add some water because mother nature hasn't come through for us as far as adding water. Any input would be appreciated. Am I right in testing FC at night from now on and getting it up to target level? What about TA? Do I leave it alone? Thanks.
yes going great, thanks to everyone's help. am I right in my thinking? I added chlorine an hour ago and my FC is now 19. Is that too high? shouldn't be a problem with the way my CYA is right? so can I just check my FC and PH every night and adjust if needed? I figure if I need my ph increased I can aerate and just check TA once a week or so. Is it necessary to check FC in am all the time? Do you have any idea how much FC could be lost throughout the day? If I keep it at target level, it should be fine for the day right? Just a little confused on when to check the FC because I know I can do it at night, but how do I know that it isn't going to go low throughout the day? thanks again for everything. dont know what I would have done without you guys. You should hear me talking at work with other pool owners. I have told them just how much I love this website. Thanks again!
Normal FC levels for your CYA level are around 10 to 15. 19 is a little high but not a big deal. You can still swim.
For routine day to day operation you only need to check the FC level once a day, that can be in the evening or the morning, just try to check at the same time of day each day.
For routine day to day operation you only need to check the FC level once a day, that can be in the evening or the morning, just try to check at the same time of day each day.
is there a reason why my cya is reading higher today...have not added anything but liquid chlorine 12%. what is going on? i diluted the pool water 1/2 and 1/2. got around 80 which puts cya t 160! could there be a false high reading with cya?
Measuring CYA levels over 100 is very problematic. It is impossible to get a reliable number, just a rough estimate. Even for levels under 100 it is still +-15 ppm.
So as how do i really know what to keep my chlorine at? If I keep it at about 10-14 overnight and it is used up during the day, is it safe to say that I still wont get algae as long as I get it up to target level each night? Even when I was doing the cya yesterday it was about 110 so the reading I am getting today is higher. Well gonna add more water tonight to the pool. maybe that will help a little. The difference in CYA has nothing to do with it getting hotter out right? My pool is still freezing cold though.
Also remember since you are using the dilution method to test CYA, it will also affect the accuracy of the result. Add enough chlorine each day to hit the upper end of your recommended range and you should be fine.
ok. so i will just add chlorine every night to get to the target level. and test PH every night also. Should I worry about my TA or not? I know that it is a little high, but it should come down overtime right? or should I leave it because with the FC being used it will cause PH to drop and the TA can continue to raise it?
As long as the PH isn't going up annoyingly quickly you don't need to worry about TA. Just keep lowering PH to 7.2 every time it gets up to 7.8 and TA will take care of it's self for quite some time. Eventually someday, when TA is more reasonable you can adjust that routine, but for now that is the simplest thing to do.
ok, thanks. I filled my pool some more and after an hour I retested. My numbers are
FC=5
PH=7.3-7.4
CYA=90-100. didnt dilute it this time.
I let my hose run for about and hour and a half and I am more confident in the CYA reading right now. did it 3 times and got the same number.
Water level is on the high end now, so I plan on adding chlorine tonight and then vaccumming pool to waste tomorrow, back wash filter and then just adjust daily. THANK YOU EVERYONE! I am sure I will run into problems here and there or have other questions, but hoepfully not. Thanks again for all your support. I guess I better turn the heater on too! My kids got in today...but I don't know how they stayed in it as long as they did.
FC=5
PH=7.3-7.4
CYA=90-100. didnt dilute it this time.
I let my hose run for about and hour and a half and I am more confident in the CYA reading right now. did it 3 times and got the same number.
Water level is on the high end now, so I plan on adding chlorine tonight and then vaccumming pool to waste tomorrow, back wash filter and then just adjust daily. THANK YOU EVERYONE! I am sure I will run into problems here and there or have other questions, but hoepfully not. Thanks again for all your support. I guess I better turn the heater on too! My kids got in today...but I don't know how they stayed in it as long as they did.
Ok, here is my problem now. The pool was looking great,clear, no cc, just perfect. I have only been adding liquid chlorine in order to keep levels within the range. We turned the heater on Saturday night so it would be ready for Sunday. The pool was used Sunday. Monday morning when I tested the water after coming home from work, my PH was high (prob due to aeration from slide and splashing) so I added MA. An hour later added chlorine because I got a 0 for FC. CC has remained 0 this whole time. I had my husband add more chlorine last night while I was at work. I am out of chemicals right now and will be able to get more later today. If my CC remains 0 and my PH is within normal range and my pool is cloudy, should I just shock it again? Also, is there any reason why when I check my returns and the pressure is low, I backwash and my psi then goes up? I dont remember it being this way at all. Our psi has been running closer to 20 when we get the best return, when the psi goes down, then our returns are not as strong. Doesn't make sense does it? thanks for your help.