Choose dye colors and decide what you will dye your quilt in. You can do this in a bathtub, a washing machine, a kiddie pool, etc. (I used a kiddie pool.)
Follow directions on bottle of dye to decide your ratio of dye to water.
To dye a large quilt, you will need a lot of water. Fill buckets or pots with hot water from your sink or bath tub, and pour them into the kiddie pool with Rit dye.
Submerge quilt in water and stir often.
Continue process until you feel your dye has saturated your quilt well enough. I kept mine in for about two hours, because I knew I wanted mine to be really blue, and it just kept seeming like it needed more time.
Rinse quilt in washing machine. (I did two full wash cycles without soap.)