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Thread: Low-cost drip irrigation systems?

  1. #9
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    seed- my fogger pump is 1000psi. Pump is pretty $$ at about $700 lol (good thing i got it end of season sale )

    Line emmiters and such is cheap, I use those daily for my "real" job... The pump will be the expensive part. Drip systems have pressure regulators on them at 30-40psi. So that's the pressure you'll aim for from a pump. But also look for flow. Although most drippers are only 1/4-5 gallons per hour each. There are pressure regulated pumps (like a aquatec aquajet 5800 seris variable speed pump i'm getting rid of :P) but they are pretty expensive too. A fountain pump would probably work. But you'd need some type of relief (like a T in the line near the pump, pumping back into the bucket with a shut off valve to still direct water though the drippers) problem with a fountain pump is they are high flow, low pressure.
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  2. #10
    Let's positive thinking! seedjar's Avatar
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    I'm pretty sure this is going to have to be pump-driven. I'm trying to rig this for a five-foot-tall terrarium in my bedroom, and there's only two or three feet of clearance tops that's truly 'above' the area I'm going to be misting. I'm going to try to put the reservoir at least chest-high, but it needs to be accessible for refilling, so just gravity fed isn't going to cut it. I'll be able to put it high enough that I'll only need a foot or so of lift, but that's the best I can do in all likelihood.
    ~Joe
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  3. #11
    Hello, I must be going... Not a Number's Avatar
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    Yeah, if you're going to mist as opposed to drip feed, you'll need a pump.
    Grand Hotel... always the same. People come, people go. Nothing ever happens.

  4. #12
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    I know it's more than you want to spend, but this is probably ideal for a raise in humidity in a chamber... I looked at these kits before for my smaller g/h but never got one (went with the aquafogger 400 instead... too big for a grow chamber though, and too loud for your room :P)


    info, scroll down to "rain making jr kit"

    cheaper price on ebay for that item


    edit:
    Yeah, if you're going to mist as opposed to drip feed, you'll need a pump.
    yep, and higher pressure too... kit above would be ideal i think, and is barely over your $100
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  5. #13
    Let's positive thinking! seedjar's Avatar
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    So, I'm going to need as much pressure as the sum of the pressure regulators on all of my misting heads I assume? Sounds like drip feed might be a better idea... I have to sleep next to this thing after all. It sounds like misting isn't very economic for the scale I'm looking at anyways. I can get a little ultrasonic fogger for $30 and I need to add a fan anyways.
    ~Joe
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  6. #14
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    The lower the pressure on a "misting" system.. the bigger the "drops" so you'll end up with more of a spray than a mist... That's why my kit is 1000psi so it makes a dry fog and not a wet mist.
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  7. #15
    Let's positive thinking! seedjar's Avatar
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    That makes sense, but what I'm asking is how the pressure distributes along the line. If I have two heads that spray at 30-40PSI each, do I need a minimum of 30PSI on the line, or 60?
    ~Joe
    o//~ Livin' like a bug ain't easy / My old clothes don't seem to fit me /
    I got little tiny bug feet / I don't really know what bugs eat /
    Don't want no one steppin' on me / Now I'm sympathizin' with fleas /
    Livin' like a bug ain't easy / Livin' like a bug ain't easy... o//~

  8. #16
    Admin- I'm growing CPs in the Desert of Tucson, Az. adnedarn's Avatar
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    well, the heads don't spray "at" a psi. They will spray no matter. But there is an ideal spray PSI. You just need a pump that can create the pressure, and keep that pressure up with whatever flow you're going to have. So the pressure maintains while the sprayers are spraying, tha't's where the flow comes in.

    My heads are .008 orfice. @ 1000PSI I use .020 gallons per min per head. At 22 heads.. I use .44 gals per min. So I need a pump that can maintain 1000psi with at least .44 gallons per min flow.

    So 2 sprayer heads at a recomended 30PSI, you only need 30. not 60. But the pressures I gave before were for drips, not sprayers. I dont' know if the sprayers need the same pressure or not. Does that help?
    -Andrew
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