Higher CH and cloudy water

Hi all,

My calcium hardness has almost been around 150. We recently had a weeks worth of rainy weather. My pool water got cloudy shortly after. When I tested yesterday, I found my calcium was at 250 ppm. I assuming that is the reason for the cloudiness, but from what I've gathered from this forum, 250 is not necessarily that high. In the past, before I joined this forum, I would have run to the pool store. Since then I've learned my best advice comes from here.
My numbers
TC and CC: 3-4
FC: 0
TA: 120
CA: 40
CH: 250

I'm wondering if my filter is not working as efficiently as it should.