John F. Eldredge wrote:

One well-known trick for getting elderly cats to drink enough is to have
several water dishes in different parts of the house. *Cats have the
instinct to check any water source to see if it is drinkable (an instinct
probably coming from their desert ancestry). *By having multiple water
dishes, repeatedly sampling the different water dishes will result in
their consuming more water than they would drink from a single water dish..

It's not like he wouldn't drink water. I always see him drinking
water. I see them all drinking due to the central placement of the
main water dish. He would also drink standing water out of stuff in
the kitchen sink sometimes.

I thought his not drinking Friday was due to nausea. I thought the
infection was still raging despite the antibiotic injections, and
maybe it was painful for him to drink. That's why I was giving broth
and electrolytes from a dropper, a few drops at a time all day long.
It pains me now to realize how bad off he was without my realizing the
cause.

The vet in Springfield called earlier and said Abelard is now "up and
around" in his crate there are the clinic, and producing urine. More
blood work is being done as I type this. He will call in a few hours
with another update.