I used the evaporust. It works great for a while. Then I cheated out and tried white vinegar. Which works good to, but the bolts ,ect. Get a scaley , rusty residue that keeps coming back. So not so good.
Use the white vinegar it works great, but rinse them thoroughly in water with dissolved TSP (trisodium phosphate) then let air dry. The TSP will prevent flash rusting, then you can let them air dry. Works great. You can buy it at lowes or home depot in the paint section. Comes as a white powder in a box for about $5. Usually I use 2 heaping table spoons to a gallon of water.