New pool, opened about 5 months ago. I've been balancing the chems regularly, cleaning it, and keeping everything in tip top shape. However no matter what I do I can't seem to get my Free Chlorine over 0.2. At first I thought maybe my test kit was old (Taylor K-2006), but when I shock the pool the Chlorine level is detectably high (bright pink), so that wasn't it.
- Pool - 15,500 gallons
- FC - 0.0
- CC - 0.2
- PH - 7.4
- ALK - 100
- CYA - 35 (approximate)
I'm in Austin, TX, which typically has a lot of sun (enemy of chlorine, though this spring has been particularly rainy and overcast. In terms of my kit, I have a tablet Chlorinator (Pentair 320), which most recently has been set to 3.5 (little over mid-point, which seems high) along with a UV filter (Trident series 2, no UV lectures please). I also have a Hayward variable speed pump (EcoStar SP3400VSP), which I run as follows:
- 8am - 10:15am - Full Speed (3450 RPM)
- 12pm - 5pm - Half speed (1725 RPM)
I'm simply baffled by the inability to maintain the chlorine level. The pool doesn't get dirty too quickly, but algae is forming way too easily and having to shock the pool regularly is annoying.
Would appreciate any help or insights.