Now there's a place that the leaf switch device might be OK by itself -
under the benches. Misting occurs whenever it gets too dry - which is
adjustable, by the way.

The biggest problem I found with their use in an orchid house is air
movement. My fans move the thing way too easily.

--

Ray Barkalow First Rays Orchids
http://www.firstrays.com
Secure Online Ordering & Lots of Free Info!


"Dave Lockwood" wrote in message
news:V5yHa.5924$hz1.9518@sccrnsc01...
I have my misters set under the benches, pointing down. This keeps the
humidity up and the leaves dry. I mist everything with R.O. water first
thing in the morning to keep things dust free. I live in a pretty dry
area
(Sacramento) so excess humidity is not a problem. Quite the contrary! It
sure makes the evaporative coolers work well. It was 100 degrees today
and
the houses topped out at 81. ;-)
"Larry Dighera" wrote in message
...
On Mon, 16 Jun 2003 18:51:47 -0400, "Ray @ First Rays Orchids"
wrote in Message-Id:
:

It is intended, as Al says, for seedlings of terrestrial plants that
must
be
kept constantly damp.

I have a 110V version (From Griffith GH Supply) and used it as a way to
avoid misting if the "sail" has not dried out since the last time.
What
I
mean is, rather than misting when the sail gets light and lifts (as
designed), I only get misting when my timer and it coincide to apply
power
to the solenoid valve.

Hmm... That's an interesting way of controlling misting. I suppose
you designed the circuit's operation based on empirical observation
and your intended results from misting.

Without actually trying it, I would have thought that a humidistat and
"leaf switch" would have been more appropriate than a timer. On the
other hand, I can see where all three in series might be useful. I
suppose it depends if your intent in misting to irrigate or maintain
humidity.