As I work on making a Darkroom in my new location I think summer water will go above 72 F and I want to start planning for that. Plumbing is coming up.

Installing sink today

32" tall refrigerator may convert to a Jockey Box with a bucket of water and an immersed coil. Clean and disconnect it every Fall.

There are some better coils available like this. https://www.kegerator.com/ubc-high-e...il/JBA120.html

The fridge runs now, so energy use will not increase.

Plumbed inline with my Cold water feed to a Hass Valve with Hot water it may work. I mostly trickle water.

Of course, I will valve it all ways to Monday with bypass.

Any suggestions?