Hello,
Plaster pool is 2 years old and I've maintained my CH at 350 checking monthly. In the rainy season CH was added to maintain as needed. CH hasn't been added in over 6 months and water used to fill pool is RO water with 25ppm CH. Maybe 200 gallons has been added in the last 6 months in addition to rain (more rain this year here)
I recently switched to new reagents from TF Test Kits and it's showing 500 instead of 350. The old reagents read 350 but they were maybe 8 months old. They've sent me an additional set of R10, R11L and R12 and also shows 500 so we don't think it's the reagents.
Range of chemicals pool is kept in tested daily to every other day. Pool has constant PH rise.
TA 50 - 70
PH 7.5 - 8
Borates 30 - 40ppm.
FC 4 - 5 (Liquid Chlorine)
CYA 40
What caused CH to jump?
Thanks!
Plaster pool is 2 years old and I've maintained my CH at 350 checking monthly. In the rainy season CH was added to maintain as needed. CH hasn't been added in over 6 months and water used to fill pool is RO water with 25ppm CH. Maybe 200 gallons has been added in the last 6 months in addition to rain (more rain this year here)
I recently switched to new reagents from TF Test Kits and it's showing 500 instead of 350. The old reagents read 350 but they were maybe 8 months old. They've sent me an additional set of R10, R11L and R12 and also shows 500 so we don't think it's the reagents.
Range of chemicals pool is kept in tested daily to every other day. Pool has constant PH rise.
TA 50 - 70
PH 7.5 - 8
Borates 30 - 40ppm.
FC 4 - 5 (Liquid Chlorine)
CYA 40
What caused CH to jump?
Thanks!