So I had put all that vinegar and water and put a Mag 9 to keep it all moving for the past 48 hours. Wow...that pump came out looking like I just took it out of the box! It was so shiny! Of course, I splashed a little on my feet and now they're burning a little so I see why the pump got so clean.

I am going to put some bleach water in it tomorrow and let that percolate for a day or so then I'll start filling it up for 50 gallon water changes.