Our in-ground pool is 4 months old. Each week I take all the readings, and for the most part the reading have been staying consistent, except the chlorine.
One week it's perfect, the next week it's below 1 PPM. Can anybody tell me what is causing this ?
This week's readings, using ColorQ 10, is as follows:
Calcium Hardness 325.0
Free Chlorine 0.35
Total Alkalinity 95.0
I added 5.6 oz. granule chlorine to correct the problem, but can't figure out why it's not staying within proper range. I checked the AutoChlor and the tabs have been dissolving.
I live in North Central Texas, where the weather fluctuates quite a bit. This winter has been for the record book. We live in a rural area, and have a Trinity Well. The water is soft. The pool company was here last week for a courtesy check up, but they don't see the problem. Since I'm new to the forum, let me know if you need any other info.
I was testing daily, until the pool water stabilized. Once is stabilized, then I went to once a week.