Hi all,
I am a new pool owner seeking some guidance please.
My pool is 36k L (almost 10k gallons) fibreglass with SWG and solar heating.
Last week my TA was at 165 and pH 8.1. CH at 259.
I put around 800 mL of 32% muriatic acid, hoped to bring both down.
Yesterday, I tested the water and pH still at 8.1, TA gone higher to 175, CH down significantly to 92.
CYA stayed the same at 80. FC down from 8 to 6.5 (as intented as I lowered the SWG output from 50% to 30%).
Now, the other thing was that during the week, the solar heating was on and I happened to find out that my pool water level went down to just below halfway mark of the skimmer opening, because there was a leak in the solar heating pad on the roof. Not sure if this has any impact on the water chemistry recorded above (?).
Can anyone assist me in understanding why pH did not go down and TA went up too even though muriatic acid was added last week?
Big drop in CH was also concerning. There were two days of rain last week, so perhaps it impacted the CH, but too that extent is not normal?
I had some reading and from my understanding was that pH tends to increase in SWG pool and it can be exacerbated by water feature around the return jet. Is this true?
If so, then perhaps the fact that I had my solar heating on for the week might cause the pH rise/not coming down..
My pool has 2 return jets (technically 3, but one of them in the middle is used by the Polaris cleaner), which sandwich a return jet for the solar heating, so maybe the solar return jet aerates the chlorine returned by the two return jets on its either sides causing pH rise faster?
Refer to the attached picture.
If my assumption here is correct, how can I use the solar heating while minimising/preventing pH rise and get it under control (happy with pH 7.8)?
Any advice/suggestions are very much appreciated.
Thanks
I am a new pool owner seeking some guidance please.
My pool is 36k L (almost 10k gallons) fibreglass with SWG and solar heating.
Last week my TA was at 165 and pH 8.1. CH at 259.
I put around 800 mL of 32% muriatic acid, hoped to bring both down.
Yesterday, I tested the water and pH still at 8.1, TA gone higher to 175, CH down significantly to 92.
CYA stayed the same at 80. FC down from 8 to 6.5 (as intented as I lowered the SWG output from 50% to 30%).
Now, the other thing was that during the week, the solar heating was on and I happened to find out that my pool water level went down to just below halfway mark of the skimmer opening, because there was a leak in the solar heating pad on the roof. Not sure if this has any impact on the water chemistry recorded above (?).
Can anyone assist me in understanding why pH did not go down and TA went up too even though muriatic acid was added last week?
Big drop in CH was also concerning. There were two days of rain last week, so perhaps it impacted the CH, but too that extent is not normal?
I had some reading and from my understanding was that pH tends to increase in SWG pool and it can be exacerbated by water feature around the return jet. Is this true?
If so, then perhaps the fact that I had my solar heating on for the week might cause the pH rise/not coming down..
My pool has 2 return jets (technically 3, but one of them in the middle is used by the Polaris cleaner), which sandwich a return jet for the solar heating, so maybe the solar return jet aerates the chlorine returned by the two return jets on its either sides causing pH rise faster?
Refer to the attached picture.
If my assumption here is correct, how can I use the solar heating while minimising/preventing pH rise and get it under control (happy with pH 7.8)?
Any advice/suggestions are very much appreciated.
Thanks
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It is true that aeration tends to increase pH, and salt pools seem to like a pH in the upper 7 range. Even without an SWG, pH will tend to rise every few days. Now if you had to add water due to the leak earlier, your new water's TA might have influenced your changes as well.
