CYA 70
FC 5
CC 0
PH 7.4
TA 80
CH 210
Salt 4420
My problem is that I can maintain pool chemistry for a couple of months, but then my FC level will start to drop and I can't recover with the SWG.
The pool chemistry got messed up by Irma. We were without power for 8 days. I added bleach daily to try to maintain FC but with no circulation and filtering I had to SLAM the pool once power came on, as there was just a touch of algae (very slight cloudiness to the water). It has been good since then, until now. I test FC and PH daily, the rest weekly or so. CYA maybe every 3 weeks. The problem is my FC will start to drop from 5-7 where I try to keep it. This time of year the pool is not used and has a thermal cover. I run the pump 3 hours per day. The SWG was set at 3/8 which maintained FC for 6-7 weeks. Then the FC started to drop. I increase the SWG by one, then two, then full on, then add another hour to pump run time. The FC just keeps dropping, until it is down to 1-2 in the morning. By this time I had also used the "super chlor" button on the SWG, but I find I must add bleach to get back to FC of 5, which I did two days ago. This morning it has held at 5 from the same reading last night, and I have not added bleach. So I may be back on track.
This has happened 2-3 times before (I've had the pool two seasons now) and in the past I shut off the SWG and did a SLAM to get things back to normal.
I'm not sure if I'm being too lax in maintaining chemistry or what. I have allowed CYA to get as low as 50, and that is where it was this time when the FC started to drop. Do I need to be more diligent in this? Keep CYA higher?
FC 5
CC 0
PH 7.4
TA 80
CH 210
Salt 4420
My problem is that I can maintain pool chemistry for a couple of months, but then my FC level will start to drop and I can't recover with the SWG.
The pool chemistry got messed up by Irma. We were without power for 8 days. I added bleach daily to try to maintain FC but with no circulation and filtering I had to SLAM the pool once power came on, as there was just a touch of algae (very slight cloudiness to the water). It has been good since then, until now. I test FC and PH daily, the rest weekly or so. CYA maybe every 3 weeks. The problem is my FC will start to drop from 5-7 where I try to keep it. This time of year the pool is not used and has a thermal cover. I run the pump 3 hours per day. The SWG was set at 3/8 which maintained FC for 6-7 weeks. Then the FC started to drop. I increase the SWG by one, then two, then full on, then add another hour to pump run time. The FC just keeps dropping, until it is down to 1-2 in the morning. By this time I had also used the "super chlor" button on the SWG, but I find I must add bleach to get back to FC of 5, which I did two days ago. This morning it has held at 5 from the same reading last night, and I have not added bleach. So I may be back on track.
This has happened 2-3 times before (I've had the pool two seasons now) and in the past I shut off the SWG and did a SLAM to get things back to normal.
I'm not sure if I'm being too lax in maintaining chemistry or what. I have allowed CYA to get as low as 50, and that is where it was this time when the FC started to drop. Do I need to be more diligent in this? Keep CYA higher?