Hey gang, I'm taking a dive into the wonderful/mysterious world of High Pressure Aeroponics. I've read many logs and articles about hpa and I've always wanted to try it, so a couple weeks ago I finally pulled the trigger and ordered the materials. my setup will consist of two totes, 8 nozzles with a micron size of about 50(+/-), one High pressure/low volume pump, 10 gallon reservoir. two 5 gallon buckets, two micro bubble air stones on separate pumps(don't really know if these will be necessary, ill explain why later, but better to be safe than sorry) & a deep cycle timer. no accumulators or solenoids, I've come to the conclusion they do help out a lot, but are not necessary the pluming system will be designed in this order. the low profile 10 g reservoir will sit slightly above the ground at a slight tilt, so the outlet to the booster pump is at the lowest point. the bulkhead fitting in the reservoir will have a 50 micron screen over it, from there, it goes to an inline 10 micron sediment filter, then to the booster pump, which lies below the res. from there it will branch off with a Y splitter and hit both totes. all my fittings are t valves. in both totes, the incoming line will hit the first sprayer on the top right side of the tote, then down to a double nozzle sprayer directly in the center at the bottom, from there it will hit the last sprayer on the left side, then both tubes will connect behind the totes creating a closed loop system. they will spay accordingly so I should get minimal runoff. but I am draining both totes, piped, into there own 5 gallon buckets. I am draining to waste. it makes it much easier to set a standard to go by, allowing you to create a easy feeding schedule, with less monitoring. I will only have one plant in each tote, to maximize root growth room. all the pluming will be sealed(airtight lids), from the reservoir, to the totes, to the 5 gallon drainage buckets. I will only have 3 small exhaust ports, one on the reservoir , (to let out the pressure from the air stones/ let air in as the water level lowers) and one on each lid of the 5 gal buckets, (to let air out as it fills with water). I know, there wont be a complete seal in the totes because of the net pot that has to be cut in, but it'll be sealed good enough for me. as for my current lighting setup, its no where near the amount I need. i am only running on a total of ~130watts, (2 leds, 1x90w,1x40w). ive been looking at the new led light that apparently has been blowing the competition out of the water, (equivalent to a 1000w!!!) ill post the link up later. not too sure what my timer setup will be, my timer goes down all the way to 1/2 a second intervals(which will be pointless in my case since I don't have an accumulator), but its good to know that it can do that, just incase I for some reason buy one of those money hogs. ive been reading and ive found a good zone for an on time to be anywhere from 2-5 seconds, depending of the size & plant, and an off time of anywhere from 2:30 to 4:30, 4:30 being the max.