Hello all.
I believe I am struggling with a TA and PH instability issue and I don't know what to do about it. Last fall we replaced our 18,000 gallon round pool with a 9,000 gallon oval pool. Since spring I do my normal routine to get all the chemicals stable and everything seems fine to me except my PH climbs about .2 - .4 in about a weeks time. Over the past 3 weeks I have been adding MA to bring down my PH and TA and then aerating. Once it seems everything is good then I would stop. A few days later the PH is climbing again. I have had to do this 2 times over 3 weeks because the PH does not seem to stabilize. I do not have a test for borates but I did try to add a pound or so of Boric Acid to try to assist in stabilizing the PH. It didn't seem to help. Is it possible that the other pool had more borates or something in it so it was more stable? One other noticeable difference between pools is the temperature of the water. My old pool hovered between 72-80 degrees. This pool had already gotten to 92 degrees. Below is the last test done this morning.
My FC's are usually in a decline of about 2-3ppm a day which is about typical for me.
FC: 6
CC: 0
PH: 7.6 (was 7.4 3 days ago)
TA: 110 (was 80 3 days ago)
CYA: 55
Temp: 80
The water looks really clear and all is good otherwise but I already had my PH over 8 twice this season because when I think it is stabilized it really isnt. Is this normal and I have just been lucky in the past or what am I missing? Any advice would be greatly appreciated.
Thank you in advance!
I believe I am struggling with a TA and PH instability issue and I don't know what to do about it. Last fall we replaced our 18,000 gallon round pool with a 9,000 gallon oval pool. Since spring I do my normal routine to get all the chemicals stable and everything seems fine to me except my PH climbs about .2 - .4 in about a weeks time. Over the past 3 weeks I have been adding MA to bring down my PH and TA and then aerating. Once it seems everything is good then I would stop. A few days later the PH is climbing again. I have had to do this 2 times over 3 weeks because the PH does not seem to stabilize. I do not have a test for borates but I did try to add a pound or so of Boric Acid to try to assist in stabilizing the PH. It didn't seem to help. Is it possible that the other pool had more borates or something in it so it was more stable? One other noticeable difference between pools is the temperature of the water. My old pool hovered between 72-80 degrees. This pool had already gotten to 92 degrees. Below is the last test done this morning.
My FC's are usually in a decline of about 2-3ppm a day which is about typical for me.
FC: 6
CC: 0
PH: 7.6 (was 7.4 3 days ago)
TA: 110 (was 80 3 days ago)
CYA: 55
Temp: 80
The water looks really clear and all is good otherwise but I already had my PH over 8 twice this season because when I think it is stabilized it really isnt. Is this normal and I have just been lucky in the past or what am I missing? Any advice would be greatly appreciated.
Thank you in advance!
