If I remember right, you make a cage out of rebar or something similar. Put it in you bin or bucket whatever size you need. Then you put your part in with the positive lead attached and then attach the negative to the part. Fill with your mixture of washing soda and water. Make sure the part is submerged completely. I used a 2 amp trickle charger and it worked great. I may have some of the particulars wrong as it has been about 10 years since I did it, but this was the basic setup. Look around on the net, you will find the process.
