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Thread: Flood n Drain step by step plans (£20)

  1. #41

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    Quote Originally Posted by umbongo View Post
    Dickb77

    so your flood & drain system actually turned into a garden ornament powered by your 1000lph pump. It must have hit the ceiling LOL!! Is your new pump adjustable? I wonder what the minimum setting is an a digital timer? They're cheap and won't jam as with the mechanical timers.
    the pump is non adjustable ive checked for that already and i hav had digatal timers before and not really confident with them, my last grow wos nearly ruined by one of these so i tend to stay clear. yeah the water did cum shooting up but nowhere near the ceiling lol more like a garden fountain
    looks like al jst need 2 buy a smaller pump problem solved hopefully

  2. #42

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    can i use perlite as a medium instead of the hydroton pebbles?

    if so would i be better off putting it in pots or just loose everywhere?

    cheers Em

  3. #43

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    Quote Originally Posted by Emmma View Post
    can i use perlite as a medium instead of the hydroton pebbles?

    if so would i be better off putting it in pots or just loose everywhere?

    cheers Em
    ok i've thought about this and have realised that perlite is too light for flood and drain systems, but plz correct me if i'm wrong

    thanx Em

  4. #44

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    stick to clay pebbles there made for flood n drain
    GINGERS ROCK

  5. #45

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    Quote Originally Posted by Dred View Post
    stick to clay pebbles there made for flood n drain
    yeah thanx Dred i'm gonna go get some in the next couple of days.

    Idk what i'm gonna do with this bag of perlite now? lol hmmm.. maybe i'll make a couple of hempy style buckets and use it that way? I've seen peeps get good results using only perlite as the medium. i'll have to think about that and look at some hempy threads

  6. #46

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    hi dan here wot is the secret to acheveing big buds which newt would you sugest

  7. #47

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    Quote Originally Posted by growz View Post
    come on bitter lol the plants will be in 2in rockwool then the clay pellets go around them to give support and they also hold water

    is this just a standard 2" rockwool sheet you use for insulating on building sites etc?
    im going to make this set up, its my 1st grow,im thinking of seeding them in rockwool cups then transfer to this system when??

    also to 'op' what size water pump do u need? my local garden centre has a 6w and 12 w pump for fish tanks or sumthing, the 12w has a speed control its £25 is the 12w ok or too much?
    what watt pump is the 1 in yr diagram and how much water ltr per hour does it move?

    thanks
    Last edited by bubbs; 03-11-09 at 04:53 PM.

  8. #48

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    Quote Originally Posted by dickyb77 View Post
    the pump is non adjustable ive checked for that already and i hav had digatal timers before and not really confident with them, my last grow wos nearly ruined by one of these so i tend to stay clear. yeah the water did cum shooting up but nowhere near the ceiling lol more like a garden fountain
    looks like al jst need 2 buy a smaller pump problem solved hopefully
    can u not buy a sort of dimmper switch to reuduce the power to your 1000lt/ph pump giving it less power?

  9. #49

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    how thick should the layer of clay pellets be o the op set up? i can imagine the weight will push the rockwool down over time as it all gets wet. do u just add more as the plant gets bigger?
    Last edited by stone14; 19-06-09 at 11:08 AM.

  10. #50

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    hi all ive just made the diy f&d its very good but one problem i have is the water doesnt fully drain away because of the tank connector being slightly higher than the base of the tray.... is it ok to have a little water at the bottom?

    cheers

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