I turn the pressure down, soak it all up and then blast it off. I just avoid directing the jet into joints of the control boxes and glands where cables route. I’ve done the strip lights a couple of times as well but that’s probably pushing my luck.I have wondered if I could get away with the steam cleaner, what do I need to particularly avoid?
I blast all the pipework with the volume washer after every milking anyway and haven't had a problems thus far...