I use a 6inch pvc pipe drum with reducer to 4 inch and a pvc 4 inch screw on cleanout cap.
Holds 4.5 liter and that is a good size for using 5 lb of pins and is still easy to handle.
As mentioned by others, do not use warm or hot water.
It will build up pressure with the soap and citric acid.
Also the temperature changes the ph I think and it will eat away the zinc in the alloy and you will end up with pinkish or pink spotted brass.
Thanks for your prompt reply!




















































