There is some discussion about s script inconsistency with Kramer and baths vs. showers. In an early episode someone mentioned showers, and Kramer said 'oh, I take baths'.
When you listen to 'the shower head'the discussion is like this:
Jerry: hey kramer, my parents are going to have to move back to florida, isn't that great ? Kramer: Yeah well I am really happy for you Jerry: Hey you're not giving it to me man, what's wrong ? Kramer: I just took a bath, Jerry. A bath ? Jerry: uh, no good ? Kramer: It's disgusting. I'm sitting there in a tepid pool of my own filth. Kramer: all kinds of microscopic parasites and organisms having sex all around me. Jerry: Well you used to sit in that hottub. Kramer: Jerry, that was superheated water, nothing could live in that. Jerry: chicken ? Kramer: yeah