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Thread: Undercurrent hydro systems

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    Default Undercurrent hydro systems

    Hello all,

    I have been reading for quite awhile now on here and a us grow forum - it seems if you want to grow a couple the way forward is the waterfarm and aqua farms with sharks mod's

    I was having a look at the us guys doing large comercial grows for medicnal all with in the law and wow amazing - they are going crazy over these undercurrent systems - link that with an itellidose system and you have a large low maintance grow.

    Our be intrested to hear your thoughts....

    Alex

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    Interesting reading... here's some info pulled off one of the sites plus utube vid..
    Sounds like is aimed at large scale grows.

    Hybrid Modular Hydroponic System featuring our Patent Pending Sub-Current Culture Method

    Current Culture H2O brings you the revolutionary Under Current modular hydroponic system. This invention breaks new ground in the world of hydroculture. The Under Current combines the Deep Water Culture technique with our patent pending Sub-Current Culture method to create a truly unique style of plant cultivation.

    This innovative application circulates literally hundreds of gallons of solution per hour beneath plant roots. An inline Danner Mag Drive pump provides peripheral negative pressure by thrusting nutrients back to a return module (Epicenter). From this point the solution is drawn from module to subsequent module, causing a type of perpetual fluid motion. 8 gallon growth modules are interconnected via 2" conduit, allowing nutrients unobstructed passage through the plants root zone.

    The Under Current supercharges the solution with dissolved oxygen, creating a hyper aerobic condition ideal for beneficial microorganisms. Constant, 24/7 nutrient circulation ensures that pH and EC are uniform throughout the entire system. Each Under Current includes the powerful D.W.C Aeration Kit.This convenient kit enables growers to use the deep water culture method in conjunction with our patent pending Sub-Current Culture application.

    ● Hybrid Deep Water Culture /Sub-Current Culture method

    ● Provides unmatched dissolved oxygen levels

    ● 8 gallon growth module allows for maximum root development

    ● Circulates hundreds of gallons of solution per hour, keeping mineral/oxygen ratio consistent throughout system

    ● Grows huge ”specimen” type hydroponic plants

    ● Perfect for greenhouse or H.I.D. lighting foot prints

    ● Super charged oxygen levels ensure that beneficial microbes flourish


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    Hello Wobble - these look good not sure where in the uk could get one tho, a texas guy had a 8x8 setup looked nice and clean, He said he needed a better pump tho in the main brain bucket but I beleive with an itellidose system this could be the business!!

    cbd

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    Hi guy's I have been looking at these for months with envy, so much so I am in the proccess of buying the bits to make one. They are ready available over here here a link to some 35ltr boxes that look good to me. There are some superb grow reports with the building of them on here to. They cost about £1,500 dollars plus shipping and duty, for an eight pot Under culture system you could build the same things for about £400 ish. Allthough one key component is best to come from the states, there called uniseals they are on ebay.com and they will deliver to the uk. I would really appeciate any feedback on the boxes, I think they are right for the job but will alway's listen to someone with more experience.

    http://www.ajproducts.co.uk/Products...&pageID=459431

    Peace and big buds

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    they will do the job for sure mate they seem a nice box.

    im not sure about the uniseals, i think u may need a lot of sealant to stop them from leaking thats why i didnt go for them but ask sqydro on here about them im sure he can tell you more as he used them.

    i went for the mcalpine 40mm tank fitting

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    Thanks for your reply I wish I knew about the uniseals I have just ordered them today. I did see sqydro post when he got them but I'm probably not upto date did he have problems with them.

    I saw them being used on the under culture system as well and thought they looked spot on.

    I have got most of the bits now I only have the pump to buy and I have seen just the job on the bay.

    Are there any measurements that you found to be impotant in the construction process.

    Thanks once again for your input.

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    i don't think he had any problems with them just took ages to get here and a bit of sealant but what home made system aint got sealant on it

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    i wish i knew where to get them pots from in the utube vid

  10. #9
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    the uni seals were fine no leak from the seals at all i used no more nails on all of them just for peace of mind! they took ages to get here though mate thats the only prob i had with them, build ur own undercurrent system mate i have a how to thread on her which shows u easily how to do it!! i change it half way through the how to so have a gander there mate! let me know if u need a hand to build it!

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    Thanks for the advice and offer of help much appreciated, I have read some of your thread about building them I will go back and read them again. I know what you mean about the wait but when I have ordered thing from the US in the past it has only ever taken 10-14 days I dont mind as I am veging some plants at the moment and a couple more weeks wont hurt them. Is there a critical height between the bottom of the net pot and the water. I have decided to build an eight pot system and decided on the 2500-5000 ltr/hour pump which is ajustable what would the correct flow be roughly. Does it make any difference what height the flow and return pipes go into the pots.

    Thanks for your help

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    u will have to go by the size of the uniseals u ordered for the pipe size but with the size of the pots ur using i'd use 40mm pipe min.

    i had a 10 pot system with a 5000l pump and that was overkill so i'd start with running ur pump on the min setting.

    im sure i fitted my flow and return pipes 75mm up from the bottom of the pot.

    i always keep my water level with the bottom of the net pot, seem to get alot better roots

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    Thanks for the info I have bought 2" uniseals and plan on using 2" for all my flow pipes but return i was going with the one inch the same dia as the pump. do you think I should go for the 3500 ltr pump or would you still go for the 5000 ltr given what you know now. How far up would you fit the flow pipes right at the bottom so when you drain so not much is left behind or would you leave a bit is case of pump failure.

    Peace

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    60mm pipe is good mate much better flow but make sure u keep pulling them roots back out the pipe at the start once u get a nice root ball its all good.

    what i know now i would of gone with a 3000l pump with 10 pots but my pots was only 30l the ones u are getting are over 50l i think.

    i would deffo have the flow and return pipes sitting at least 40mm from the bottom of the pot but someone else may know better, i had drain valves on all my pots at the lowest point i could fit to help with draining down, im sure if u ask sqydro for help with the ewc tea the draining down part wont be such a problem coz u dont need to change the res so much but i may b wrong im just reading up on all that now

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    Just use 40mm pipe with the flanges they cost about £1.00 each and you can get them here no point in waiting weeks for the states to deliver imho
    Id recommend 90L tubs at £15 each can use 2 and put 2 plants in each
    and a pump at about £30-40.

    Dont forget this system is noisy btw
    ATB
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    Thanks for all your help, the boxes I have bought are 35lt so you would have gone bigger then. I wish I knew about the flange fitting you refer to before I had ordered these uniseals could have saved quite a bit on them. Normaly when I order things from the states it doesn't take long for them to get here its customs here that takes the time. if you track the parcel you can usually see them clear customs then you can chase the delivery company and pay the duty over the phone and they arrive the next day. I usually get my delivery in just over a week this way. I will keep your idea in mind just in case I end up waiting and waiting. I now wish I had asked before I started ordering the bits. The tea you mention I guess this is to start benificial bacterier colonising your system. Can you please help with this Sqydro.

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    I guess the root problem you just check it often with that one, how often do they become a problem is it a weekly check Item. Does the system hold its PH well, as the golden rule with fish keeping is the bigger the amount of water the easier it is to keep balanced. Would an ultra violet filter they use in fish keeping not help with the algi that seems to be a problem or does the tea take care of this anyway.

    Sorry for all these questions I just want to learn as much as I can.

    Also i would like to appologise to morecbd for taking over his thread I didn't mean to but just like you I am very curious, I presumed that It would be ok as it is related to you original question.


    .

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    My boxes have arrived today, they look just the job, they came in a bit cheaper than expected at just over a tenner each, I'm itching to get started I have just ordered the pump of Ebay, I have gone for the Eheim 3000ltr/hr model but this pump can be turned down if it tunrs out to powerfull which there are alot of cheaper pumps than this one but the control of the flow I thought would be better.

    link to the pump I have gone for.


    http://www.ebay.co.uk/itm/Eheim-Comp...item4cfcd9a66a

    I already have some of the other bits required.

    8x 200mm net pots
    8x 4" circular flat air stones
    8x drippers
    1x feed pump for the drippers
    1x large air pump with 8 outlets.

    The pipeing to complete the system will come from a local pluming supplier.

    I hope the uniseals come soon as I will probably use Icons approach to the job if the dont.

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    Hi Icon I have looked into the 40mm flange fittings you suggested and it would have been a very good solution. They are not as cheap as you think though the best I have found so far is £2.77+ vat which would have been a lot cheaper than the uniseals though and redilly available. I also think that the 40mm size for the pipe and fittings is more prudent as there is a better range of fittings in that size. I am stuck now waiting for the uniseals as it will cost me another £70 to change now,if I had of had your info earlier then I would have used your method it seems very cost effective.

    Thanks for you input.

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    Cheap as chips
    I use a plumbers merchant called James Hargreaves they are yorks based and last time i bought some they were £1.00 try your local merchants for best prices
    if you do go with this then there are two sizes very close to each other one size is push fit the other size has to be glued or cemented using Silicone or PVA cement
    The push fits are ok if every thing is straight but if you stress the joints you can get a leak either way you can glue the push fittings once your happy with the set up
    Hopefully the uniseals arrive they do work well as far as i have heard on here but so do the flanges if fitted right
    If you do go with the flanges pm me and i will go into detail for you
    ATB
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    Yes thanks for that I will try localy as I dont mind and extra £20 or so. I can allway's stick the uniseal on ebay and make my money back. The push fits sound the best I dont expect much movement from my tanks but I could put some 1" square retainer battens around the pots so the dont move too much.

    Thanks GG

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