Got the electric ran and have done some prelimary tests. Need to work out a couple things, and paint the stand, other than that, it is finally finished.. Started the project almost two years ago. The pumps are 90 volt DC and have variable speed. It is a BCS 460 setup with rims recirculation. The chiller is a duda diesel with tri clover input and outputs. I've learned a lot from this forum, and have stolen a few ideas along the way. Almost everything on this rig was bought from a scrapyard, surplus stores, or deals on Ebay.