Well I spent a little time sanding the tank this afternoon. I ordered all grits of 5” sanding discs. Sense I wasn’t seeing much results from 600 I worked my way down from 400 to 320 to 240 to 180 to 120 to 100 tell I started see the sand paper actually creating sanding dust. After seeing 100 making a dent I spent about 5 min hitting the etching and scratches. Then after the 100 I stepped to 120 and did another 5 min. Then did about 5 min on 180. At 240 I started seeing a reduction in swirl marks from the sandpaper so I worked it for around 10 min with the 240.
Here’s where I’m at right now.
Next I’m going to hit it at 320, then 400, then 600, then 800, then 1000, and from 1k to 10k I’ll be wet sanding. I’m going to try to get the sanding done this weekend.