Given the heat wave that's hitting here now, I've been researching ways to mist my Neps in the middle of the day while I'm at work. I think I've pieced together something affordable and I wanted to see if anyone has done something similar.
The balcony my plants are on isn't near an outlet or water so the requirements are an automatic timer that doesn't require a power cable and a system that doesn't need a garden faucet. I found this plan which was designed for a reptile terrarium but I only have a few plants so it should suffice. It also seems to have been written a long time ago so I need to source other parts.
Here's what I found. For a timer, I plan on using this device. It goes as low as 1 minute and it runs on AA batteries. For the mister, I plan on using this kit. And to pressurize the water, one of these garden sprayers should do the trick. I'm hoping I can find one that uses a hose sized attachment for the sprayer so I won't have to jimmy an adapter.
My only real concern is that the sprayer may not provide enough pressure for the misting. Has anyone else done something like this?
That is a very cool idea there!! I used that same kit (changed it now) and a similar timer (but with solenoids and stuff) but not a garden sprayer
I have a greenhouse, and i find the misters work ALOT better with a fan, but thats in a semi-closed space. How long will the sprayer last you. that system you have will use about 3L per hour for each nozzle (I tested that on . . .~2bar). so, how long will the pressure last, and will there be enough water in it till you can refill it? keep in mind, if you pressurize the garden spray bottle when its full, the pressure decreases very fast after just a little water leaves it.
enough pressure. . . I actually think it will. it just may not last very long. those nozzles are designed to work on low pressure.
I hope it works for you, cos as i said, its an awesome idea!!
I got some low pressure mist nozzles off ebay that work around 30 psi but used a centrifugal pump (40 meter head) to pressurize the line from a resevoir of RO water. That's probably overkill for what you're doing, and not really necessary for what I was doing. Just watering the plants from a sprinkler head raised the humidity enough in my greenhouse.
If you're not using RO water, your plants will develop a layer of white hard-water deposits.
Thanks for the info guys! It's encouraging. I think I will be okay with just 5 mins of misting once or twice in the afternoons, so the set up above should be sufficient. I'll just need to pump in the mornings and refill every other day and I will water by hand before leaving for work. I'll post pics when I get it all together, likely in another week or two.