"trader_4" wrote in message
...
On Saturday, November 10, 2018 at 10:33:19 AM UTC-5, Steven Watkins wrote:
Why do houses have a switch to turn the shower off, either a cord on the
ceiling or a switch in the hall?

Why would anyone have a shower activated with a switch?

Because there has to be one when it uses electricity to instantly
heat the water instead of using stored hot water. And when
the shower has a pump to increase the water pressure.

I've lived in many places, traveled to many countries.

But clearly havent used too many showers in many houses.

Some showers have lights that are
on switches, but not the shower itself.

Plenty in europe and china have what wimps call suicide
showers where the mains is in direct contact with the
water in the shower head and heats the water that way.
https://www.youtube.com/watch?v=cNjA0aee07k

The only place I saw such a shower
was on my boat and it's a 12V pump.

Then you need to get out more.

Trolling?

Not in this case, its a genuine question.