pressing down triggers a set of angled water jets built into the plate, and they spray upward and inward at once.
Because the jets sit at an angle, the water doesn’t just shoot straight up. It fans out to hit the bottom and the sides of the glass in a couple of seconds. That’s the clever bit. A stream aimed dead center would miss the walls entirely, so the angle is doing the real work here.
The unit is plumbed into your water supply, and the runoff just drains down into the sink like anything else. On a home faucet attachment, that means it uses whatever your tap sends it, usually cold or room temperature rather than a dedicated hot line. The bar-style jet washers are a different animal and often run hot, so don’t assume yours does the same. Check where it’s connected before you expect steam.
One thing
