Hi All,
I have a 30 K gallon gunnite pool with SWG. We have had great luck with zero eye issues all summer since opening it for the first time.
Chemistry as of last night when people compiling about eyes
Ph 7.51 per ph probe, 7.4 colorimetric
FC 3.0
TC 3.2
CH 206
CYA 40
TA 76
Borate ~50
I had initially added 55 pounds of boric acid ordered directly from Duda Energy but was getting low-ish readings of about 40 (to get to 50 ppm should be ~70 lbs per the calculators) so added another 10 pounds. I got this batch off amazon but when it arrive packaging was actually also from duda energy (99% purity, same as the 55 pound drum i got directly from their website that had no issues with eye stinging).
The chemistry hasn't really changed much but its like a light switch with everyone now complaining about eyes (5 year old keeps going to bathroom to get wet toilet paper to rub on eyes sort of bad).
I know that increasing borate from 40 to 50 is not causing this. Ph seems fine (and didn't perceptibly with the 10 lbs boric acid) as does CC. Thoughts on impurities in boric acid burning eyes (not sure what the 1% that is not boric acid is)? This seems like a long shot though.
Since the CC calculates out at only 0.2, is there any utility to shocking it to try to get CC down further? Also seems like a long shot.
Thanks so much,
Jeff
I have a 30 K gallon gunnite pool with SWG. We have had great luck with zero eye issues all summer since opening it for the first time.
Chemistry as of last night when people compiling about eyes
Ph 7.51 per ph probe, 7.4 colorimetric
FC 3.0
TC 3.2
CH 206
CYA 40
TA 76
Borate ~50
I had initially added 55 pounds of boric acid ordered directly from Duda Energy but was getting low-ish readings of about 40 (to get to 50 ppm should be ~70 lbs per the calculators) so added another 10 pounds. I got this batch off amazon but when it arrive packaging was actually also from duda energy (99% purity, same as the 55 pound drum i got directly from their website that had no issues with eye stinging).
The chemistry hasn't really changed much but its like a light switch with everyone now complaining about eyes (5 year old keeps going to bathroom to get wet toilet paper to rub on eyes sort of bad).
I know that increasing borate from 40 to 50 is not causing this. Ph seems fine (and didn't perceptibly with the 10 lbs boric acid) as does CC. Thoughts on impurities in boric acid burning eyes (not sure what the 1% that is not boric acid is)? This seems like a long shot though.
Since the CC calculates out at only 0.2, is there any utility to shocking it to try to get CC down further? Also seems like a long shot.
Thanks so much,
Jeff