Re: Misters
I agree with Chris. I tryed to grow in a hot dry climate and used 6ghp
misters/microemiters and they worked great in an interval of 5 minutes on 10
minutes off.
--- Chris Andersen <chrisa@value.net> wrote:
> >Marv in Altoona
> >
> >Chris:
> >Before you leave us again would you comment on your watering system? Where
> >you purchased your misters and if you have any new thoughts?
> >Marv
> ===============================================================
> Marv,
> I am not leaving, just stepping down at the end of the week so someone else
> can take over the podium. I like Duncan' idea of inviting a different Heavy
> Hitter to speak each week and look forward to hearing viewpoints other than
> my own. My misting system is used to cool the leaf surface of my plants
> during high temps, above 85-90F. It has worked quite well in keeping the
> plants cool and eliminating leaf burning in high temps up to 111F. Many of
> the Napa Valley Growers now use such a system with great satisfaction. The
> idea is to wet the leaf surface area just enough to cool the leaf by
> evaporation of the water. It consists of a Irritrol microprocessor
> controller (water timer) and micro emitters (sprinklers). A standard rain
> bird type water timer does not support the functions required to make the
> system work. You need a water timer or controller that provides for "Loop
> Cycling"and "Loop Delay". This feature allows you to program a "Start
> Time", "Stop Time" and "Programming of each Valve" for a specified run time
> in seconds or minutes in a cycle. Example: At 10 a.m. the first valve
> starts, runs for 60 seconds, shuts off, valve two starts runs for 60
> seconds
> shuts off. The system then shuts off for 8 minutes, then valve one starts
> and runs for 60 seconds and so on until 4 PM or programmed shut off time
> when the entire system shuts down. There is a difference between misters
> and
> micro-emitters. Misters provide exactly that, a fine mist almost like a
> fog.
> Micro-emitters on the other hand are actually micro-sprinklers that
> broadcast a very fine broken up water pattern. I prefer the micro-emitters
> as I find they cover a larger area and provide for better wetting of the
> leaf surface area. Misters on the other hand provide such a fine mist or
> fog
> that it tends to swirl around in a un-even pattern missing much of the leaf
> area. The micro-emitters I use are available in 49gph,21gph and 8gph sizes.
> I have found for a large to medium size patch 3,000 sqf plus the 21gph work
> great, for smaller patches the 8 gph work great. These are available from
> Ewing Irrigation products Main Office 3441 East Harbour Drive Phoenix AZ
> 85034 PH: 602-437-9530. Part # for the 21 gph is 12002030. As a side note
> some of the Napa Growers may want to further comment on this subject as I
> believe they are using different micro-emitter heads which do not put out
> as
> much water.
> Chris
>
>
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