Engineering Innovation Podcast and Radio Series

Commode Cleaner

PostedJune 3, 2012

Download File (mp3)

Anchor Lede: We all fear having to use dirty public toilets. So three recently-graduated Purdue University engineering students have invented a toilet seat washing machine.

Randy Atkins: When you lower the lid it’s enveloped by a tightly sealed barrier. Then small amounts of the clean water from each flush are diverted into spinning lawn sprinkler-like blades.

Dimitri Sogomonyan: And that builds up a lot of momentum and that’s how the blades clean up the entire seat and we have wipers attached to that same mechanism and the wipers dry off the seat.

Randy Atkins: Dimitri Sogomonyan, a co-inventor of the Poseidon Seat, says it works even without soap or added chemicals…

Dimitri Sogomonyan: We’ve covered the seat with jelly, ground beef, sauce, we’re trying peanut butter now, and the seat gets cleaned in an instant because you have all of that water pressure.

Randy Atkins: Sogomonyan says, with no need for regular maintenance or electricity, its cost per use should be very low. With the National Academy of Engineering, Randy Atkins, WTOP News.