OK, so earlier this week I had chlorine levels showing after shocking. now, I have no FC. I really want to get this straightened out soon as I have a new baby due in about 3 weeks and need to focus on getting the "honey do" list completed.
Week 1 numbers (9/11)
pH = 7.4
alkalinity = 70
cya = 0
total hardness = 70
total chlorine = 0
free chlorine = 0
28,000 gallon gunite/plaster pool w/ 60sq ft DE filter
Week 2 numbers (9/18 ) morning after shocking with 3 lbs lithium-hypo
pH = 7.5
alkalinity = 120
cya = 100
calcium hardness = 190
FC = 1.5
TC = 2.0
TDS = 250
Week 2 numbers (9/20)
pH = 7.4
alkalinity = 100
cya = 30 (cya last time must have been wrong, as suspected)
calcium hardness = 130 (sample taken at 7:30am @ 52 degrees air temp; filter NOT running since 8pm last night)
FC = 0
TAC = 1
TDS = 200
Phosphates = 2500
~28,000 gal gunite/white plaster with 60sq ft DE filter and auto-chlorinator running 3" trichlor tabs
readings done by Leslies approx 1.5 hours after taking sample. Leslie's recommended shocking with non-chlorine based shock first (6 lbs) then with regular shock after one full turnover and keep the chlorinator going with the tabs. he said focus on getting the chlorine to "stick" before attacking the phosphates. Since we just opened pool 2 Wednesdays ago, and expect to close by end of October, does it make sense to do much with the phosphates if we can get the chlorine levels OK. Also, they indicated that I could get different calcium readings because of "settling" in the water overnight, especially with the cooler temperatures. I do want to make sure we get the calcium to acceptable levels before we close, but do I need to be highly concerned with this at 2 weeks in? they suggested taking a sample after the filter has been running a while.
Thanks for the advice!
Week 1 numbers (9/11)
pH = 7.4
alkalinity = 70
cya = 0
total hardness = 70
total chlorine = 0
free chlorine = 0
28,000 gallon gunite/plaster pool w/ 60sq ft DE filter
Week 2 numbers (9/18 ) morning after shocking with 3 lbs lithium-hypo
pH = 7.5
alkalinity = 120
cya = 100
calcium hardness = 190
FC = 1.5
TC = 2.0
TDS = 250
Week 2 numbers (9/20)
pH = 7.4
alkalinity = 100
cya = 30 (cya last time must have been wrong, as suspected)
calcium hardness = 130 (sample taken at 7:30am @ 52 degrees air temp; filter NOT running since 8pm last night)
FC = 0
TAC = 1
TDS = 200
Phosphates = 2500
~28,000 gal gunite/white plaster with 60sq ft DE filter and auto-chlorinator running 3" trichlor tabs
readings done by Leslies approx 1.5 hours after taking sample. Leslie's recommended shocking with non-chlorine based shock first (6 lbs) then with regular shock after one full turnover and keep the chlorinator going with the tabs. he said focus on getting the chlorine to "stick" before attacking the phosphates. Since we just opened pool 2 Wednesdays ago, and expect to close by end of October, does it make sense to do much with the phosphates if we can get the chlorine levels OK. Also, they indicated that I could get different calcium readings because of "settling" in the water overnight, especially with the cooler temperatures. I do want to make sure we get the calcium to acceptable levels before we close, but do I need to be highly concerned with this at 2 weeks in? they suggested taking a sample after the filter has been running a while.
Thanks for the advice!