squidgygoanna Posted January 15, 2017 (edited) Hey guys, Recently purchased a good quality 12 x 8ft greenhouse. I'd like to set up a misting system inside, but I'd like the misting system to be fed by a water pump connected to a reservoir rather than fed directly from the tap. I don't have much experience with misting systems, but I assume they need a pretty powerful water flow. What sort of pump would I need to facilitate this? would 100PSI do the trick? what kind of flow rate should I aim for? Submersible would be ideal, not sure if that's possible though Thanks for any help Edited January 16, 2017 by squidgygoanna Share this post Link to post Share on other sites
2Deep2Handle Posted January 28, 2017 mate 100 PSI is overkill. I work in irrigation for a large commercial raspberry and blueberry farm, and one of my raspberry pumps that do 1.6Ha(Hectares) through 4 field valves pushes out 85 PSI max (its a 45 000 L/perH) through 2 inch submain lines, and is enough to water 4000+ plants through drippers/emittors. Thats the pumps capacity when i just run 1 valve, but it happily runs all 4 valves with pilot valves limiting the field pressure to 25-35 PSI anyway. Im thinking a 2500 - 5000 L/PH hour submersible pump from bunnings would cut it, if you can get the reservoir up higher than the bottom of the greenhouse. Pumping up-hill (head-height) is what kills you. You can always put a little half inch tap in as a restricter as well, to turn it down if it's too much pressure. These need 240 volt power supply, which you can just wack a $10 timer on. If you want to get really ghetto-tech, slap a cheap flow meter on it too. Share this post Link to post Share on other sites