April 25th, 2018:

	"Too much soap."

That's the verdict on our dishwasher.  Apparently Oversoaping is a real 
occurence, and it can cause water leakage.  Which is weird, as we've been 
using the same brand of dishwasher packs (and same Jet-Dry) for a couple 
of years without issue.  Perhaps there was a build-up?  I dunno...  So, 
for the time being we're going to switch to a different dishwasher 
detergent (whether powder or liquid) and adjust the amount of soap we use.

Apparently all the seals/gaskets on the dishwasher are fine, as are the 
hoses, so at least we're good there.

We're $225 poorer, but at least we can use the dishwasher again...