Mist King Systems - Orchid Board

estación seca · #1 08-27-2021, 03:22 PM

Quote:

Originally Posted by K-Sci

Ideally, the system I'd like will be able to keep the humidity up (humidity activated) and run on a schedule to water the media 2-3 mornings per week. Would I need to get two timers to accomplish both goals?

-Keith

I haven't used humidistats. My engineer friend tried several, then gave up, saying they aren't reliable. Have others here used them? MistKing sells one that integrates with the misting system.

Rather than a humidistat you could run the thing every X minutes while you're home some day, and observe how long it takes for the humidity to drop to where you want the mister to come on.

If you go to MistKing.com you can read the ST-24 seconds timer or RCT-24 repeat cycle timer programming instructions. The ST can have up to 9 different programs, on any combination of days of the week, for any length of time. So, yes, you should be able to do periodic brief mistings for humidity and longer mistings for watering.

K-Sci · #2 08-27-2021, 06:30 PM

Quote:

Originally Posted by estación seca

If you go to MistKing.com you can read the ST-24 seconds timer or RCT-24 repeat cycle timer programming instructions. .

Read the manuals! Now that's something I can do. I didn't know they were available.

-Keith

---------- Post added at 05:28 PM ---------- Previous post was at 05:25 PM ----------

Quote:

Originally Posted by Ray

I had a humidistat on my greenhouse flogger, and it worked quite well.

If you want to control by humidity and on a schedule, you’ll need to control circuits set up in parallel.

Water supply > pump > splits to two lines, each with its own controller, one RH, one timed > joined into a single line to the nozzles.

That's what I was thinking would probably be necessary. Being in Mississippi, I only have a humidity concern in the winter, and the interval misting is for December vacations. If I start now, I should be able to have both done in time.

-Keith

---------- Post added at 05:30 PM ---------- Previous post was at 05:28 PM ----------

Quote:

Originally Posted by WaterWitchin

Now I use a fogger instead.

Would I be wise to go straight to a fogger, rather than stop at misting along the way?
-Keith

WaterWitchin · #3 08-28-2021, 08:42 AM

Quote:

Originally Posted by K-Sci

Would I be wise to go straight to a fogger, rather than stop at misting along the way?
-Keith

It would depend on your grow space, and how enclosed or not enclosed it is. You could easily get a fogger or two and try before you buy two systems, since foggers are cheap. My setup isn't fancy... I just have them sitting in my open top reservoir. Another member followed that idea and built a real fancy one. I'll see if I can find it.

---------- Post added at 07:42 AM ---------- Previous post was at 07:32 AM ----------

Found it! It was Clawhammer who took my idea and added all the bells and whistles. 50 Gallon Humidifier

And if one fogger isn't enough, use two. They're cheap.

K-Sci · #4 08-28-2021, 01:45 PM

Quote:

Originally Posted by WaterWitchin

It would depend on your grow space, and how enclosed or not enclosed it is.

Fully enclose. Here's a picture of Keith Land. My 44 gallons R.O. water reservoir (trash can) is visible to the right of the exterior door.

Quote:

You could easily get a fogger or two and try before you buy two systems, since foggers are cheap.

My setup isn't fancy... I just have them sitting in my open top reservoir. Another member followed that idea and built a real fancy one. I'll see if I can find it.

Hmmm, I've been assuming that a fogger would cost more. But can they be used to keep plants "watered" for a 2 week vacation. Perhaps it doesn't matter if the humidity is kept high enough. In the summer with powerful ventilation and 60% daytime humidity I water Sundays and Wednesdays.

Quote:

---------- Post added at 07:42 AM ---------- Previous post was at 07:32 AM ----------

Found it! It was Clawhammer who took my idea and added all the bells and whistles. 50 Gallon Humidifier

And if one fogger isn't enough, use two. They're cheap.

Thanks for the info.
-Keith

---------- Post added at 12:45 PM ---------- Previous post was at 12:35 PM ----------

Quote:

Originally Posted by Ray

As WW asked - how large of an area/volume are you humidifying?

12'x13' A picture was posted above.

Quote:

My Seedling nursery/ICU had a 3' x 6' ebb and flow tray as a base. I added an enclosure that was 3' tall, made from aluminized foam insulation panels, painted white. There were LEDs and circulation fans suspended from the ceiling, and heat mats on the floor, under nonwoven polyester pads.

I'm not sure I fully understand your description, was it fully enclosed, or did it have an open top?

Your use of added heat from below is interesting.

Quote:

I bought a Mist-King Starter kit, and had two, dual-nozzle foggers also suspended from the ceiling. It ran for one minute at 5 am for watering, then for 30 seconds at 1 pm. The RH was near 100% and I had to put a drain in the tray to dump the excess water.

In my 18' x 14' x 12' greenhouse, I had a Jaybird Hydrofogger.

Which Jaybird Hydrofogger model did you use. I don't see prices on their site, but they look very expensive.

-Keith

Ray · #5 08-28-2021, 11:07 AM

Quote:

Originally Posted by K-Sci

Would I be wise to go straight to a fogger, rather than stop at misting along the way?
-Keith

As WW asked - how large of an area/volume are you humidifying?

My Seedling nursery/ICU had a 3' x 6' ebb and flow tray as a base. I added an enclosure that was 3' tall, made from aluminized foam insulation panels, painted white. There were LEDs and circulation fans suspended from the ceiling, and heat mats on the floor, under nonwoven polyester pads.

I bought a Mist-King Starter kit, and had two, dual-nozzle foggers also suspended from the ceiling. It ran for one minute at 5 am for watering, then for 30 seconds at 1 pm. The RH was near 100% and I had to put a drain in the tray to dump the excess water.

In my 18' x 14' x 12' greenhouse, I had a Jaybird Hydrofogger.