Greetings all,
My salt water pool has been acting about odd lately. The last few weeks I seem to be losing CYA at a rather rapid rate; for example I went from 70 to 20 between Sept. 1st and today (Sept. 15th). Additionally, my cell seems to have trouble keeping up. Previous months keeping the cell at about 20-30% running 24/7 (low-low speed on a variable speed pump) would keep my FC level in a good range (4-10 depending on loading and sun exposure). Lately I've had it running 100% 24/7 and it can hardly keep 2 to 3 FC and I am supplementing with 10% bleach often.
Most confusing was this morning. Test at 10am before the pool comes out of shadow gave 3.5 FC (0 CC) after the cell had been running 100% for several days straight. CYA had dropped to the 20 I mentioned above so I added 77oz of CYA, 40lbs of salt (cell turned off just prior to addition) and 1.5 gallons 10% bleach (to bring the FC up high while the cell is off for salt to dissolve). I just tested the FC/CC levels and have a reading of ZERO FC and CC. Full latest results below:
10am 9/15/18 test:
FC 3.5
CC 0.0
pH 7.5
TA 60
CA 450
CYA 20
Salt 3400
Temp 87F
~11:30 am added 79 oz dry CYA, 40lbs Salt, 1.5 gallon 10% bleach (Cell turned off from 100%).
2pm 9/15/18
FC 0.0
CC 0.0
pH 7.0 (Expected drop from CYA addition)
OCLT planned for night, if I can get the pool to hold any chlorine. Willy be dumping another gallon shortly.
Anyone have ideas for where my chlorine went? Or where my CYA has been going? We've had pretty normal rains nearly every day. Pool is 100% clean (can see the screw heads on the main drains) and I can see the bubbles pouring out of the returns from the cell running.
Thanks to all who read and/or answer!! I've had zero trouble with this pool up until now
My salt water pool has been acting about odd lately. The last few weeks I seem to be losing CYA at a rather rapid rate; for example I went from 70 to 20 between Sept. 1st and today (Sept. 15th). Additionally, my cell seems to have trouble keeping up. Previous months keeping the cell at about 20-30% running 24/7 (low-low speed on a variable speed pump) would keep my FC level in a good range (4-10 depending on loading and sun exposure). Lately I've had it running 100% 24/7 and it can hardly keep 2 to 3 FC and I am supplementing with 10% bleach often.
Most confusing was this morning. Test at 10am before the pool comes out of shadow gave 3.5 FC (0 CC) after the cell had been running 100% for several days straight. CYA had dropped to the 20 I mentioned above so I added 77oz of CYA, 40lbs of salt (cell turned off just prior to addition) and 1.5 gallons 10% bleach (to bring the FC up high while the cell is off for salt to dissolve). I just tested the FC/CC levels and have a reading of ZERO FC and CC. Full latest results below:
10am 9/15/18 test:
FC 3.5
CC 0.0
pH 7.5
TA 60
CA 450
CYA 20
Salt 3400
Temp 87F
~11:30 am added 79 oz dry CYA, 40lbs Salt, 1.5 gallon 10% bleach (Cell turned off from 100%).
2pm 9/15/18
FC 0.0
CC 0.0
pH 7.0 (Expected drop from CYA addition)
OCLT planned for night, if I can get the pool to hold any chlorine. Willy be dumping another gallon shortly.
Anyone have ideas for where my chlorine went? Or where my CYA has been going? We've had pretty normal rains nearly every day. Pool is 100% clean (can see the screw heads on the main drains) and I can see the bubbles pouring out of the returns from the cell running.
Thanks to all who read and/or answer!! I've had zero trouble with this pool up until now