The house I live in was once divided into apartments; my darkroom is an old kitchen with a standard 2 well sink. This works okay for most things, although recently I've been taking my homemade 16x20 printwasher to the bath tub because it's too big for the darkroom sink. I would like to get a long, shallow darkroom sink. I used to use my own bedroom for a darkroom, so now I'm just really happy to have running water.
I have no temperature control other than the H and C knobs and a thermometer. In the summertime in Kansas the ground heats up so much that I can't get tapwater to drop below 80 degrees. I make ice water in 5 gallon buckets to process roll film, and I save sheet film until the fall. In fact my tapwater just got back down to 70 last week, and I'm discovering photos I forgot I took as I develop the accumulated film.