Not a very afective way to blast i did the same thing years ago on my hood hinges but with sand just bought a bag and cut hole in the end put hose in it you really need volumn and that setup just wont cut it lol but is ok for tiny lil parts but as he said he used a 3rd of the bucket just doing that lil part for what that cost could took down to local blaster and have done cheaper part that big would be 5 bucks or less) by the time you buy the soda and amount of ele im sure that part was more then 5 bucks