my sink's haunted by energy bills - can we fix it?

Interesting dream, but honestly, the idea that your plumbing is a big energy vampire might be overstating things a bit. Sure, leaks and inefficient fixtures can waste water (and money), but the kitchen sink itself usually isn't a major energy drain compared to heating systems or appliances. Still, if you're concerned, swapping in a low-flow faucet or checking under the sink for hidden leaks can help. I did that last year - found a slow drip that'd probably been wasting water for months... surprisingly satisfying fix.

Had a similar "haunted sink" experience when I moved into my place. Thought the water bill was just high because, you know, adulting... Turns out there was a sneaky leak under the bathroom vanity. Quick fix, lower bills - felt like a plumbing superhero for about five minutes.

A standard kitchen faucet’s energy use mostly comes from the hot water it draws, not from the tap itself. If there’s an electric point-of-use heater or a hot-water recirculation setup serving the sink, that could change the picture; otherwise, a leak wastes water whether it’s hot or cold, and a hot-side leak can also waste the energy used to heat that water.

- That distinction matters most at a kitchen sink: an aerator can cut hot-water use for handwashing and quick rinses while keeping a useful spray. It won’t save much when you’re filling a basin or pot, since you still need that volume of water.

That’s especially true for dishwashing: if you’re washing by hand, could a basin or washing-up bowl help more than an aerator by letting you avoid running hot water the whole time? An aerator can reduce flow, but it can’t save much if the tap’s left running while you scrub.

A basin can help more while you’re scrubbing because you can shut the tap off, whereas an aerator mainly reduces flow when water is running. For rinsing, the aerator still helps; which saves more depends on how much time you spend scrubbing versus rinsing. Using both seems like the most practical combination if a basin fits the routine.

I’d start with a quick leak check: if something’s dripping, it wastes water whether anyone’s at the sink or not. If nothing turns up, then changing a daily habit like shutting off the tap while scrubbing seems the more useful next step.