RicodJour wrote:

I know how the things work, thanks. The foot operated pedals are
something that can be easily retrofitted to any existing faucet and
are readily available. Hands-free operation is superior for most
washing operations.

Do you mean a mechanical or electrical foot pedal?

You said that foot pedals are easily retrofitted into any existing
faucet - by that I'm thinking that you mean some sort of
mechanically-operated water valve requiring running new water lines to
the foot pedal. If so, I wouldn't call that an easy retrofit.

If you mean an electrically-operated valve that's operated via foot
pedal, where exactly would you get that?

In any case, the use of a foot pedal to turn a kitchen faucet on and off
is not my idea of ergonomic, as compared to a touch-activated water
valve.

I see that the Delta faucet in question is sold by HomeDepot.com as an
internet-only item, for about $350.