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So this is a relay timer I found on ebay. I haven't tested it yet, but it looks like it will do just fine... http://www.ebay.com/itm/281933321740 The ebay site isn't very explanatory, but if you look closely in one of the pictures you can see a link to another site inside the packaging of the...

Will do, thanks for the input howdee

Lol yeah, I ordered it already... but it's going to take more than a month to arrive... I'll let you guys know if it works when I get it

Hey guys! Has anyone ever tried on using one of these pumps for HPA? They are really cheap and could save me some bucks if they work :confused...

Try finding it in Mexico :S

Atomizer. I get it, it's not the same environment within a pressurized tank, but anaerobic bacteria can still prosper in such an environment as they are not very affected by such pressures. I'm not saying it can't be done, but being sterile is often an issue... I don't add sodium hypochlorite...

Me, this is what I would do in future grows, and it's neither of both... I'd run HPA, because I don't really see the point of AA, with a small reservoir and pump it into the system once the accumulation tank loses pressure... the capacity of the tank is completely dependant on the number of...

So I guess it's confirmed then, thanks Atomizer. I'm thinking of a separate misting system, like LP just for the organics... lol... maybe feeding them once a week Or sticking to misting them manually for the time being

Pothead, Well yes, like everything else in this art, brewing your own nutes comes with a learning curve, so trying it out on a smaller scale first would be the wise choice. Me, I have never used a compost tea, it frightens me a little not knowing what could be living inside it I guess, lol... As...

Again, this is off topic, but I'll share my opinion on the matter. I get that, but even if you're using 100% soluble nutrients you could still get some precipitation going in the reservoir... This could happen because you're not careful enough while pouring them in, eg. If you use the same...

Well I can easily see that happening Atomizer, but I believe it can be done otherwise. Probably not for HPA, because of the low amount of nutrients that go to waste in DTW... it's probably more cost effective to run it DTW than to have a 1W/gal air pump and bubbler running all the time... if...

I must say I disagree about that pothead... if you use a 5 micron filter bag on the pump inlet and maybe a 200 mesh in the drain of the root chamber, you shouldn't have any contaminants going back to the root chamber. That is, anything that could clog your pump... if you have a pathogen in your...

Yes... As Atomizer said, you need to keep adding air, there is no way that you could mantain a pressure of 100PSI throughout the week without pumping either air or water back into the system... which is why I mentioned the pressure switch to activate the compressor... How about a 2 pump setup so...

Ok, so each seven days you'd be emptying whatever is left on the accumulator tank and refilling it with nutrient solution. Once filled you would pressurize it with an air compressor and pressure switch to maintain the pressure at 100PSI If your calculations for having 8 nozzles on the root...

Hey... I'm having trouble imagining how you plan to get the water into the pressurized accum tank without a pump :S I also fail to see the purpose of this, a diaphragm pump would be cheaper and more silent than an air compressor... There's an aeroponics variant called Atomized Aeroponics (AA)...