pH = 7.8
Alkalinity = 100
Calcium hardness = 160
CYA = 40
My numbers are all good, and water is clear. My husband thinks I over analyze the pool numbers but I can't help but wonder why? I have noticed that the last few weeks my ph has been on the rise. Started at 7.2 then 7.4 several days later, then 7.6 maybe 4-5 days later, and now about 2-3 weeks into it is up to 7.8.
I test the water every 3-7 days ...after heavy use I always test and make adjustments. Have only added chlorine to the pool the last 3 weeks. I chlorinate with pucks and have always found that pH would need to be raised over the summer (pucks are acidic and decrease the pH). Alkalinity has remained 100-110 range and no changes to any of my numbers. I keep chlorine between 3-5pm. I haven't filled my pool since the start up because the rain this summer has kept our levels good. I actually had to drop the water level at one point and did need to do a backwash.
I know everything is in normal ranges and I should just let it be but....Any reason pH would just start raising when everything else remains the same? Anything I should be on the look out for? Thanks