Guys over the yrs I have taken apart,scrub,clean several machines from woodworking to metal working over the yrs.Today I pull the trigger on a 40gal parts washing tank(used).You can seat the part in the bottom of tank to soak or seat it on a rack,turn on the pump to wash the part.Its my first time for this type of tool so my question is what solution or chemical do I need to purchase for one of those cleaning tanks that will acturally clean that can be purchase local or over the net?Nothing that I will need to keep the local fire departments Hazmat on standby.Thanks----kroll