Having a problem with CYA. My CYA Level 19 days ago was 45 PPM. Recently my chlorine level has been dropping upwards of 5 ppm during the day. I did a OCLT and it went from 5 to 4.6 so it passed. So I went ahead and tested my CYA and it was 25 PPM. I added stabilizer and got it back up to 40 PPM. Still experiencing around 4-5 ppm chlorine loss in a day. Pool spends most of the day in the direct sunlight. Is this an acceptable loss for chlorine and CYA? Pool is new and has had water in it since February. Thanks.