I am cost conscious.
A diaphragm pump is an inexpensive pump that can provide pressure up to 150 psi.
Lower pressure 1/4in slip-lock nozzles work at 125-150 psi.
Can a diaphragm pump provide a cost effective solution to misting?
What would have to be overcome?
Optional control for consideration.
Diaphragm pumps have a built in pressure switch. The high pressure units switch at 150 to 160 psi.
Before I put a complete system together let's do some testing. I put together a basic setup.
Test Diaphragm Pump Mister
If you want to experiment with a higher pressure system for humidification or outdoor cooling this is as inexpensive as it gets.
Mist was good out of 0.20mm nozzles and up. Droplet size looked the best (smallest) with the 0.20mm nozzles. You could tell the droplet size was getting bigger when nozzle size was increased.
Pump actually put out a gallon a minute. Not a gallon an hour as stated in the video.
With the pump off source water does not flow through the pump. Solenoid prevents that.
Remember, misting nozzles have check valves built in. So when you shut the pump off the nozzles checks stop water flow.
I you want to try it out here a couple options on eBay.
I have a variety of packages in mind. They will eventually get on this site.