We just moved into a house over the weekend with an in-ground concrete pool (Dallas/Fort Worth Area). It's chlorine and about 17,000 gallons. I've read through the pool school threads over the past couple weeks, ordered a Taylor k2006 test kit and all of the basic chemicals.
The water to the pool is very clear, however before we moved the skimmers were full of 3" tablets as well as the inline filter. I tested the water last night and pH was low (7.1) and CYA was very high (over 110) and FC came in around 19. Total Chlorine was about 1ppm. I also ran a diluted test for CYA to confirm. I added some borax to bring up the pH last night and now I'm trying to figure out the game plan on what to do next with such a high CYA and FC level (but still clear water).
I took a sample to the local pool shop to confirm and their numbers were as follows (very close to mine, so that's good I guess):
TA:57
pH: 7.5
CH: 361
FC: 19.07
CYA: 127
Phosphates: 2493
The water is still clear, however I'm not sure where to go next. Do I need to drain the pool? Is it safe to swim with such high CYA and Chlorine and Phosphate levels? The pool is in full sun and it's well over 100 here every day with no rain for the foreseeable future. I've gotten rid of the tablets and have liquid chlorine. Pool Math states that my FC should be around 14 with these CYA levels. Is this correct? What is an ideal FC level with a CYA level this high? Ideally I can make it through the next couple months with the kids being able to swim before draining or maybe evaporation and adding fresh water would help. Any real downside to that or do I just need to bite the bullet and drain it this weekend.
Thanks for any advice. This forum has been a huge help!
The water to the pool is very clear, however before we moved the skimmers were full of 3" tablets as well as the inline filter. I tested the water last night and pH was low (7.1) and CYA was very high (over 110) and FC came in around 19. Total Chlorine was about 1ppm. I also ran a diluted test for CYA to confirm. I added some borax to bring up the pH last night and now I'm trying to figure out the game plan on what to do next with such a high CYA and FC level (but still clear water).
I took a sample to the local pool shop to confirm and their numbers were as follows (very close to mine, so that's good I guess):
TA:57
pH: 7.5
CH: 361
FC: 19.07
CYA: 127
Phosphates: 2493
The water is still clear, however I'm not sure where to go next. Do I need to drain the pool? Is it safe to swim with such high CYA and Chlorine and Phosphate levels? The pool is in full sun and it's well over 100 here every day with no rain for the foreseeable future. I've gotten rid of the tablets and have liquid chlorine. Pool Math states that my FC should be around 14 with these CYA levels. Is this correct? What is an ideal FC level with a CYA level this high? Ideally I can make it through the next couple months with the kids being able to swim before draining or maybe evaporation and adding fresh water would help. Any real downside to that or do I just need to bite the bullet and drain it this weekend.
Thanks for any advice. This forum has been a huge help!
