J-mans Dad wrote:
That's why the Oxygenics shower head (and a few others) will dribble and not shut off completely. The dribble keeps the lines from being back fed from either cold or hot at the mixing valve. Some people complain the shower doesn't turn off completely. Personally I'd rather have the dribble than the freeze or scald. If you leave don't turn off the shower completely, then you won't have the cross flow problem.
Ditto here - apart from the Oxygenics being awesome, it does have that 'dribble' which we find very useful for keeping the water hot as well as giving a little water to lather up better.
cheers,
xena