High Pressure Solenoid Pumps

I was wondering if anyone has tried these pumps. http://www.google.com/products/cata...=X&ei=SM6tTeGAE-XTiALxtJjIDA&ved=0CGUQ8wIwAQ#
They're high pressure pumps used in espresso machines and various other items. I managed to find a low pressure 1 bar pump at work but it would only push the easy clone low pressure sprayers, and it did it quite well I might add.
They put out anywherer from low pressure 1 bar which is about 14.5 lbs and up to 25 bars. There is one site I found which a guy did an experiment growing tomatoes and almost succeded but he really didnt go into the set up pf the equipment and what cause his experiment to fail. anyways check it out here http://www.trendgrinder.com/aeroponic-tomato-results/ I think its a great alternative to high flow, high pressure, high heat pumps. And if your REALLY doing aero you would need something high pressure and not necessarely high flow since your high pressure fogger/misting heads would only produce up to 3 gallons an hour. Anyways just curious.

I haven't gotten into high pressure but certainly have wanted to, spending enough coin on low pressure things.
But I'm thinking no matter what the pressure with a full strength nutrient solution running through it any mister is gonna clog(depending on the size droplet it produces) . I just ordered some misters and an inline filter, the misters are high or low pressure. I'll be trying it on a fairly high gph pump but probably just wasted my money. I have no idea about the pump you posted but thought I'd give this a little bump since I too am interested in the subject.

solenoid pumps, that is interesting.

Ive been up and down with the high gph pumps and seem to never really get it right so i went to a low pressure hydro set up. Loved my aero but couldnt get it just right. Im tempted to order up a pump and just do a small test. I did get to play with one the other day but it was only rated at @ 1 bar. Still put out a hefty spray. The only thing i would do "different" in a high pressure set up cause undoubtably the misters will clog, Is run the tubing on the outside of the container with a hole for inserting the misting head (which could be inserted upside down, in other words, spraying down) so that I can just do a periodic check without having to pull lids off and play with roots. And with a solenoid I pump I could use high pressure flexible 1/4 inch hose. Which would be ideal. Just a res, a pump, and a tray.

Also I wanted to add that these pumps are used in dispensing of soda fountains and the like, in the research there even capable of pumping brine, and chemicals, so a bit of salt wouldnt be out of the question.

misters that produce such a fine droplet are pretty costly and high pressure or not they're gonna clog and clog good in no time, a week if not less depending on the nutrient solution and filtering.Its just more feasible to drill a hole in a pvc pipe and let the water flow. even then you'll be unclogging a 1/8th inch hole now and again.

Honestly.. The aero set up i did prior, had one out of 5 high pressure misters clog using Advanced Nutes. And the misters them selves were only about 6 bucks for 8 if i remember correctly.I alwasy had spares, I just did not like to lift the lids to check em.

yeah? haven't tried anything real fine, I was thinking true aeroponis required a 5 micron droplet but maybe that was 50 :/, I assumed something that produced a mist so fine clog fairly easily since in low pressure most all misters fail.

Those expresso pumps are interesting, kind of like piston pumps, check those out, they're super tiny, not to distract from your type, but I'm surveying all options while I'm brainstorming my build. Who knows the expresso's might have better characteristics for the application, if we're doing drain to waste which is optium from a plant growth standpoint, if we want to maximum gram per watt, then we have to account for energy we use on water, because honestly all those people that claim those ratios, never account for all their other wastes, it's the total of the product, not the sub units that matter on a macro scale.

To clear it up, the range that describes dry fog is from 5-20 micros, 20-30 is aeroponic, but there are no plants from what I've read that consider this droplet size past the seedling stage (I've used ultrasonic foggers to clone and they do great here, I'm in F & D BTW, for ease, KISS) 30-80 microns is the range that the majority of plants will readily accept across the membrane, 80-100 is aero again but is too large and causes instant beading, though beneficials can accept droplets this size.

And that is another topic, no one is actively using all this air to grow micros, I know AgriHouse and Biocontrols, at Aeroponics.com is hard to read, but if you can find it there is an article by one of his fellows there that says he uses kelp and guano in his aero setup, filtered of course, and that his source materials infest the system with beneficials.

BTW, when they teamed with NASA they found that chitosan from crustaceans causes an immune response in the plant RNA causing a systemic acquired resistence or SAR, aspirin, which is naturally found in willow tree bark, also causes a SAR response, normally these are triggered as defense mechanisms, but when you're babying your plants since they have no enemies to fight instead the energy from this defense response gets put into generative growth translating into bigger buds in our case, or in the case of a mother plant, more cuttings, in the case of the male I assume more pollen and the mother again massive increased seed production, couple this with the ability to use collodial silver to feminize male seed stock and you really have some power in your hands.

The more I learn, the more I share, the more I encounter new knowledge. There is some true Illumination going on in this and other forums in the minds of a few individuals.

I was reading that true nutrient molecules are one atom positive charged of that element. An angstrom is 1/10,000 of a micron, don't worry about filtering out the good stuff you couldn't even afford it, LOL.

I've seen some people buying 1 micron bags on Ebay, but I was thinking couldn't you just get some silk screen?