So first year pool owner here looking for help. In the last week I have been running my salt cell 100% and can only get up to 4.0FC. PH and CYA in range according to pool math every single test. Some I don’t log. That being said, I was wondering why my pool can’t produce FC so I figured it’s a dirty cell. But after removing, I expected to see build up everywhere but I see this. Is this clean? Or am I missing something and actually dirty. Please help.