Cleaning splint boots....?

Actually I had the same boots for my lease horse several years back, and I just threw them in the washer when they got dirty. Probably not the best method for the longevity of the boots, but it works. The other thing I've done is just take a plastic scrub brush, put some detergent or shampoo on it, wet the boots, and scrub them by hand. This works great. To dry them blot them with a towel or rag as best you can, then let them out somewhere to dry. They will dry much faster in a heated environment, so if your tack room is not heated you might want to keep them in your house to dry.