Hi all,
Looking for some help, guidance and advice on what I should be doing. You will find my specs in my signature but I am 20k plaster pool on a SWG in North Carolina. I test every three days using the taylor test kit. My most recent results are
Free Chlorine: 5.2 (ran super chlorinate late last week) I try to keep it in the 3's
PH: 7.8
Alk: 70
Calcium Hardness: 350
CYA 70
Water Temp : 85
Salt: 3100
That gives me a CSI of -.05 which is great except the pool school guy gave me different ranges for chemicals.
He suggests PH in the 7.4-7.6 range. If I go to 7.4 my CSI drops to -.42 (image below)
He also suggests Alkalinity in the 80-120 range. I know from reading just to let it settle and keep it above 50. If I let it drop to 50 with a 7.4ph and keep other chems the same, that drops my CSI to -.65.
Finally, he suggests calcium hardness from 200-400 while pool math says 250-650. Any specific reason as to why the huge delta between suggestions?
In short, it seems that TFP suggestions somewhat counter each other. If I keep my alkalinity low, my CSI soars.
And finally, I keep getting this white stuff settling at the bottom of the shallow end of my pool. I'm guessing its coming from a jet that points in that direction. I pulled my salt cell and its clean, so not sure if its scale breaking off somewhere or what.
Looking for some help, guidance and advice on what I should be doing. You will find my specs in my signature but I am 20k plaster pool on a SWG in North Carolina. I test every three days using the taylor test kit. My most recent results are
Free Chlorine: 5.2 (ran super chlorinate late last week) I try to keep it in the 3's
PH: 7.8
Alk: 70
Calcium Hardness: 350
CYA 70
Water Temp : 85
Salt: 3100
That gives me a CSI of -.05 which is great except the pool school guy gave me different ranges for chemicals.
He suggests PH in the 7.4-7.6 range. If I go to 7.4 my CSI drops to -.42 (image below)
He also suggests Alkalinity in the 80-120 range. I know from reading just to let it settle and keep it above 50. If I let it drop to 50 with a 7.4ph and keep other chems the same, that drops my CSI to -.65.
Finally, he suggests calcium hardness from 200-400 while pool math says 250-650. Any specific reason as to why the huge delta between suggestions?
In short, it seems that TFP suggestions somewhat counter each other. If I keep my alkalinity low, my CSI soars.
And finally, I keep getting this white stuff settling at the bottom of the shallow end of my pool. I'm guessing its coming from a jet that points in that direction. I pulled my salt cell and its clean, so not sure if its scale breaking off somewhere or what.
