"Rusty" wrote:


"Owain" wrote in message
...
Rusty wrote:
I'm pretty sure the kitchen mixer tap I got from Texas (as it then was)
10 yrs ago only has a single tube in the nozzle. It rotates through 360
deg. without stopping. The 1960's mixer it replaced, which at one time
were very common, did have did have two tubes in the nozzle, but wouldn't
rotate all the way round. I can't think of a practical way to
manufacture a 360 rotate with two tubes.

The two tubes are concentric, with the cold on the outside so the tap
spout doesn't get too hot to touch.

I don't think I believe this. I will take the spout off at the next
opportunity and have a look.

Mine is certainly like that - a ceramic 1/4 turn monobloc fitted about
1986.


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