A 10 year old quilt should not be in delicate condition, but for vintage quilts that are hand quilted, I wash in the bathtub. Oxiclean is great for stains, and since it is "active" for 6 hours, the process can take days when working with an old quilt with spots. However, I have found it to be effective. I use vinegar in the rinse.
After squishing out as much of the final rinse water as possible, I lay towels out on a clean tile floor and put the quilt down flat. We live in a dry climate, so that works. When it is almost dry and much lighter weight, I hang it over a shower rod.
It is a lot of work, but so rewarding to have a fresh, clean quilt to use when finished.
Dayle