Hi Mike
Sounds good, looking forward to seeing how it goes. I think the .015 micron may be a typo, you`ll need a few thousand psi to get anything through a hole that size :)
If they are 0.15" (0.38mm) you`ll probably be ok with 45-60psi minimum for reasonable mist, 90psi would be even better.
It sounds like you`re planning to locate the misters low down and fire the mist upwards? Be careful that the roots dont engulf the misters as they will tend to fill the space from the floor upwards.

hex,

I bought 4 each - the of the red and white ones.

I want to try them with a smaller pump to see how they work, as the full system will have about 24 nozzles. I can spray upward or sideways, or even downward.

Mike

Hi Mike,
I messed up with the decimal point too, it should read .015" which is 0.38mm. I don`t know what misters you are using but the mist pattern generally gives a good indication of the best placement. Don`t forget to factor in easy access to the misters for cleaning or replacement.

hex,

Actually, I think it is the Gallons per minute of water flow, based on a given PSI! I have a link to the misters in an earlier post.

Alas, unless they are pointed down or toward the middle, it may be hard to have easy access - the system I'm using upstairs, where the water is spraying upward, I had to silicone-seal the lids to prevent leaks!

Mike