I have one of those at home in the UK, in fact I only recently changed the older unit that was getting long in the tooth. The house is old and an electric shower the only way to have a proper shower. I also have a shower extension, a rubber tube with two inputs you connect to the hot and cold taps in the bath tub and which outputs cold water if you hold it lower than the taps and hot water if you keep it above the taps, but never a mix of the two.
For those who don't know, the sinks and bathtubs in UK homes and businesses often have two completely separate taps: one for hot, one for cold. You're supposed to fill the sink with water from both and "wash" your hands (or your dishes) in it. No, you don't rinse them afterwards. It's just soap, it's good for you.
For those who don't know, the sinks and bathtubs in UK homes and businesses often have two completely separate taps: one for hot, one for cold. You're supposed to fill the sink with water from both and "wash" your hands (or your dishes) in it. No, you don't rinse them afterwards. It's just soap, it's good for you.