Hi,
I had replastering and fresh fill done last summer. Up until just the past few weeks, my CH level fluctuated within a range of 160-180, but since July 16 to the present, it has jumped up to 250 (210 on 8/10, 230 on 8/20, and now 250 today). I know these readings are all still within acceptable limits, but I'm wondering why the increase? The water level has been dropping with the lack of rainfall in our area and also probably attributable to later evening cooler temps, so I don't know if that has something to do with it. I am at the point where I soon have to start adding water. The other thing that is odd (which I alluded to in several other recent threads) is that I've suddenly developed what appears to be a calcium deposit issue on the grout. Should I be doing anything different in balancing the water? Or does a freshly filled newly plastered pool typically increase CH levels over time? My other current readings are:
TA - 100
pH - 8 (working on trying to keep that lower....this keeps going up for me also)
No chlorine....(biguanide)
Thanks for any thoughts,
Keith
I had replastering and fresh fill done last summer. Up until just the past few weeks, my CH level fluctuated within a range of 160-180, but since July 16 to the present, it has jumped up to 250 (210 on 8/10, 230 on 8/20, and now 250 today). I know these readings are all still within acceptable limits, but I'm wondering why the increase? The water level has been dropping with the lack of rainfall in our area and also probably attributable to later evening cooler temps, so I don't know if that has something to do with it. I am at the point where I soon have to start adding water. The other thing that is odd (which I alluded to in several other recent threads) is that I've suddenly developed what appears to be a calcium deposit issue on the grout. Should I be doing anything different in balancing the water? Or does a freshly filled newly plastered pool typically increase CH levels over time? My other current readings are:
TA - 100
pH - 8 (working on trying to keep that lower....this keeps going up for me also)
No chlorine....(biguanide)
Thanks for any thoughts,
Keith