let it run for several hours. when done tumbling, filter parts out. it is pretty simple really. first stage degreases and cuts rust and basically cleans the part. second stage polishes the parts. the polishing takes a little longer to develop the necessary shine. so basically you have to run the parts through the gauntlet twice. to get the part for completely nasty to complete shine, it takes about a day. i recommend this for anyone who is into restoring their vehicle(what eastwood is for). i threw in the intercooler brackets before i pc'ed them. i have done brake shim kits. works perfectly. i start the polish process overnight and let it run in the garage.
