I am constructing a 60" X 42" custom shower. I made some extensive
search on custom showering and got some idea what I want. Basically I
want to have fixed shower head on the right shower wall, Slide Bar
Mount hand held shower head either on back or right wall. I also want
two body sprays on right wall and two on left wall. Now the question
how to connect them together and what type of controls to add. I
probably need a 2-way diverter between fixed and slide bar mount
shower heads and thermostatic and volume control to regulate
temperature for either of shower heads. What about body sprays? what
usually regulates volume and temperature to them? Also what's the
correct sequence of water flowing between thermostatic, volume control
firstname.lastname@example.org (Sasha) wrote in message
Wow, you are talking about a lot of water here! If I've counted
correctly, you have six shower heads altogether. You'll need to be
able to move at least 7.5 or 9 gallons per minute, depending on how
you put things together. For rates like that, I'd suggest you use
3/4" supply pipes and a 3/4" thermostatic valve. (Grohe has the
latter, to give one example.)
The usual setup is to have the hot and cold water supply go in to the
thermostatic valve, then split up the mixed outflow among the various
shower heads, putting a volume control valve on each branch. Each pair
of body sprays is usually on a pressure-balancing loop, with a single
volume control for the pair. So you could do your setup with a single
(high-capacity) thermostatic valve and four volume control valves.
As you mention, you could also use a diverter to alternate between two
of the heads. Frankly, I think this is a less useful setup; if you
have the water for it, I'd go with the one in the previous paragraph.
But if you prefer the diverter, it goes after the volume control valve.
So here, you end up with one thermostatic valve, three volume control
valves (two for the body sprays and one for the two shower heads), and
You can also do more than one thermostatic valve, if you want shower
heads at different temperatures, but I really think it is overkill -
confusing, as well as expensive.
Again, to summarize, the usual setup is hot/cold water into the
thermostatic valve, with the combined flow then branching out the
to volume control valves, followed possibly by a diverter valve on
some branch, and in any case on to the shower heads. And again, there
are some issues with things like getting sufficient flow and balanced
pressure out to the various heads, so it really would pay to consult
with somebody with real expertise in this area.
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