In case Dr. Grossan is interested in suggestions for improvement to the
HydroPulse, here are mine:

1.  Waterproof, durable travel case (preferably hard sided), to put
HydroPulse and attachments in when we go traveling.  Probably available
as an extra-cost option.

2.  Make those 4 holes at the top (that are supposed to hold the
attachments) shallower.  Cleaning inside there is a bitch.  Better yet,
raise the level of that whole compartment so it's easier to reach inside
it for cleaning.

3.  Make that depression under the wand shallower too.  In general,
there should be fewer deep holes and crevices in the HydroPulse that
hinder cleaning.

4.  Hooks or stanchions inside the electrical cord compartment, that you
can wrap the electrical cord around for storage.  It's clumsy to just
stuff the cord in there, because gravity tends to make it fall out.