It seems mine isn't the only penguin to have had trouble with leaks. Found in an old mailing list archive on the web:
From: Phantasm <phantasm@XXXXXXX.XXX> Date: 05 Sep 2002 00:05:02 -0400 Message-Id: <1031198707.19482.33.camel@office> Subject: Re: [SLE] [OT] Leaky Penguin Quick way to do it, get an old spray bottle (Like the ones Windex comes from), grab some liquid soap and put some in it, fill the rest with water, shake so you see bubbles inside (The floating kind, not the monkey kind), and spray it on the penguin, the leak will bubble up like there is no tomorrow! Once you find the hole, patch it, rub the rest of the soapy water over it and give Tux a nice sponge bath!* * Extra options: Beautiful blonde for this job is preferred by Tux, but not required!