I would just like to comment that yesterday I changed the substrate in my 55G from regular gravel to turface pro league red. I rinsed the turface for over an hour, filling up the bucket, sloshing it around to get the water cloudy, emptying and repeating.
After a continuous hour of doing this the water was somewhat clear, not perfect, but much better than in the beginning. I put it in my tank, added water very slowly and it still got cloudy. Not too bad, but to the point where I couldn't see the back of my tank from the front.
I just ran my filter overnight and when I woke up the water was much clearer, still not 100% clear, but getting there.
I would suggest rinsing it until you get fed up with doing so, then adding it to your tank. From there let your filter and water changes do the work.