We have a Mira Atom bar thermostat shower, with both a hand-held
shower-head and an overhead 'deluge' head. A diverter valve allows
selection between one or the other, or both together. However the
direction that the little bar on the diverter valve points is counter-
intuitive: upwards for the hand-held head, to the back for the
overhead deluge, and forwards for both together. I would like to
reverse the first two, as they presently offend my sense of logic (but
work perfectly OK, so it's a personal thing!), so that up diverts to
the overhead and back diverts to the hand-held.
Removing the cap on the diverter valve assembly reveals a screw head,
holding in a plastic fitting. Before I start taking it apart, am I
likely to be able to change the flow settings in the valve by
re-positioning this fitting in some way, or am I stuck with the
existing arrangement, in which case there's no point in fiddling with
it? (The Mira web site doesn't show an exploded diagram of the
diverter, although it shows exploded diagrams for almost everything
Page 12, bottom right, shows the diverter tap (also in other places).
The hand-held head connection is at the back, and the deluge
connection at the top. In all the diagrams, the little bar on the
diverter tap is pointing forwards, which brings in both shower heads.
With the bar pointing up, in the direction of the deluge, the
hand-held head is operational, while with the bar pointing to the
back, in the direction of the hand-held head connection, the deluge is
operational. Those last two mildly irritate me, and I'm looking for a
simple solution like reversing the gizmo inside the diverter tap, or
whatever, so that the little bar points to the outlet (shower head or
deluge) that is actually operational, but I'm not looking for major
The pipes supplying the bar thermostat unit are behind a tiled plywood
Thanks for your thoughts. I was hoping someone would say they'd
investigated the innards of the diverter and all I had to do was this
and that. But no luck, it seems. I'm at the moment sketching diagrams
on paper to see if it's even possible in principle to re-arrange a
T-bore stopcock to give me the desired result (as in
something like that is what's inside. I then might pluck up the
courage to start investigating the diverter itself. I'm not
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