Thanks for tagging along! I have been watching your progression with getting the scratches out....does not look like fun. Take a look at this thread. There are some different ideas on how people are using seaklear or other products.
http://reefcentral.com/forums/showthread.php?t=2049855
I ended up using phosfree because I was able to get twice as much half the price of seaklear. I don't have a skimmer running on the bin right now but haven't noticed any precipitate and I do plan on rinsing off thoroughly before putting them into the tank.