How do i unclog water pipes?

by wrapping heat tape around them and then insulate both the pipe and heat tape but make sure your frozen pipes are not cracked or split because you will have a mess when they unfreeze and insulating the pipes is no fun but it will have to be done in order for the heat tape to work properly. when buy heat tape they always give you the specs of what size insulation to put over what size of pipes you have.