I live in Orlando Fl and the temperature traditionally is always hot. I was able to experiment this summer as this is my first year with a pool and the usage of FC. I was able to use 1 puck per week and the use of liquid chlorine and not have any CYA rise (given the rain and auto drain) which was nice as it allowed me to not use as much liquid per week and only have to add it once a week versus twice. I usually check the pool twice a week and make any chemical additions as necessary. I traditionally check my CYA and CH once a month. Recently the temp here has dipped into the 60-70s (enter FL winter joke here) and noticed the chemistry in the pool has begun to change. This being my first winter with a pool, off the bat I noticed the FC has lasted longer and PH has stabilized longer not requiring as much acid. I however did not stop placing one puck in per week. With the recent month check up on the CYA I now noticed it is 70 from 40. Now a 30ppm jump after 4 pucks seems abnormal but nonetheless it is my reality now. After logging my recent test:
FC 4
CC 0
PH 7.7
CH 225
ALK 70
CYA 70
CSI -.47
I noticed my CSI is negative beyond the recommended .30 on the app.
It appears increasing ALK to 90 or an increase of CH to 275 would put me in good shape. Which would be the recommended course of action? Calcium seems expensive to buy but ALK at 90 I noticed has my PH increase to often causing more frequent use of MA which only brings it down agian wastes my money.
I would like to add that over the course of this first year I have developed in the corners of the stairs or in random spots on the floor small scale stains. After extreme research on this site, speaking to the pool company and friends whom are pool owners, I may conduct a no drain acid wash using MA and 24/7 run for a 3-4 days with twice a day scrubbing as it appears to work via experience of other users onthis site. From my understanding there is a calcium hardness increase during this process as the acidic water during the treatment will leach it out of the plaster. I’m afraid that if I add calcium now to tackle CSI issue I could approach the maximum 350 target for this test and have to drain a portion of the water from the pool to bring down to normal levels.
I value your advice on best recommended next steps from here. Thank you.
FC 4
CC 0
PH 7.7
CH 225
ALK 70
CYA 70
CSI -.47
I noticed my CSI is negative beyond the recommended .30 on the app.
It appears increasing ALK to 90 or an increase of CH to 275 would put me in good shape. Which would be the recommended course of action? Calcium seems expensive to buy but ALK at 90 I noticed has my PH increase to often causing more frequent use of MA which only brings it down agian wastes my money.
I would like to add that over the course of this first year I have developed in the corners of the stairs or in random spots on the floor small scale stains. After extreme research on this site, speaking to the pool company and friends whom are pool owners, I may conduct a no drain acid wash using MA and 24/7 run for a 3-4 days with twice a day scrubbing as it appears to work via experience of other users onthis site. From my understanding there is a calcium hardness increase during this process as the acidic water during the treatment will leach it out of the plaster. I’m afraid that if I add calcium now to tackle CSI issue I could approach the maximum 350 target for this test and have to drain a portion of the water from the pool to bring down to normal levels.
I value your advice on best recommended next steps from here. Thank you.
