Yesterday I did a water test and had the following results;
FC - 4
CC - 0
TA - 90
PH - 7.6
CH - 350
CYA - 55
I previously posted that I'm having difficulty keeping my PH down, and my FC is burning at 5ppm/day at least. I figured I'd take a sample into the pool store to see what they would read. They provided the following;
TC - 0
TA - 70
PH - 7.6
CH - 250 (100 less than mine)
CYA - 30 (15 less than mine)
Since I've only owned the pool a couple months, I've not had to shock it yet, but one recommendation on why I was burning through FC was a stubborn algae somewhere that is eating it up, so maybe a shock would help. Prior to getting the water tested at the pool shop, I started the shock using the CYA table with a target FC of 22-24. For some reason, whatever I expect my FC to be (based off chlorine % and volume), it is usually twice as much. Anyway, I added enough chlorine that my test shows 26ppm.
Should I believe the pool shop test over mine for CH and CYA? If their CYA is correct, am I to be concerned with a FC in the 20's? Given my rate of FC burn, I'm wondering if their CYA result is better and thus the reason why I go through so much FC.
Water looks fine, and my overnight loss was 2ppm, but the sun was just up when I tested it. I'll double check again tonight to be sure.
FC - 4
CC - 0
TA - 90
PH - 7.6
CH - 350
CYA - 55
I previously posted that I'm having difficulty keeping my PH down, and my FC is burning at 5ppm/day at least. I figured I'd take a sample into the pool store to see what they would read. They provided the following;
TC - 0
TA - 70
PH - 7.6
CH - 250 (100 less than mine)
CYA - 30 (15 less than mine)
Since I've only owned the pool a couple months, I've not had to shock it yet, but one recommendation on why I was burning through FC was a stubborn algae somewhere that is eating it up, so maybe a shock would help. Prior to getting the water tested at the pool shop, I started the shock using the CYA table with a target FC of 22-24. For some reason, whatever I expect my FC to be (based off chlorine % and volume), it is usually twice as much. Anyway, I added enough chlorine that my test shows 26ppm.
Should I believe the pool shop test over mine for CH and CYA? If their CYA is correct, am I to be concerned with a FC in the 20's? Given my rate of FC burn, I'm wondering if their CYA result is better and thus the reason why I go through so much FC.
Water looks fine, and my overnight loss was 2ppm, but the sun was just up when I tested it. I'll double check again tonight to be sure.