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DIY 2 or 3 Site RDWC Design Help Needed

Discussion in 'DWC/ Bubbleponics' started by zypheruk, Sep 12, 2017.


    zypheruk Well-Known Member

    Ok folks I'm looking someone that knows rdwc setups to help me set up a new system if possible.

    With the cab being long and narrow I'm only looking to use three 35L or two 50L storage boxes, res 50L or 84 L and chiller will be housed outside the cab. All the sites are the same height.

    I have all 2inch solvent weld fittings. tank connectors, pipes, elbows etc at hand.
    1 x Hailea Nutrient Chiller 150c
    1 x Hailea Water Pump HX8810 can be used inline or submerged.

    Internal cab size is 30 inches wide X 57.5 inches long x 71 inches high.

    Res and Chiller has to be placed on the left side as there is a built in wardrobe on the other side of the plaster board wall. Feeding pipes through the cab and wall is fine (no choice really).

    I think the best layout is going to be the sites running central on the cab floor. with the 2" pipes running through the middle of each tote.

    I want to keep this simple and clean as possible, and reduce the risk of flooding as much as possible as the cab is in my bedroom and sitting room is below it, a flood here would be expensive.

    I will be running a scrog or flower support net at all times.

    So with the above info what is my best way to connect all this up, I have run dwc before but always had problems with nutrient temps, so this time I want to do it right first go.

    Image of the inside of my flower cab as is with pots of coco below.

    Any help is really appreciated.

    Last edited: Sep 12, 2017

    zypheruk Well-Known Member

    A little diagram of what I hope is the correct way to have this set up. Built in wardrobe is on the other side of the plasterboard wall, different room. Sticking with a 2 site setup, will keep wife happier with low plant counts.

    I will add another ball valve to the left of the water pump so I can isolate the system if needed. Will also be adding an inline filter to the right of the pump once I get one.

    So 2 X 35l sites and a 50l res, should be easy enough for the chiller and water pump to deal with. Air stones to go in the 2 x sites and res. Wall to wall scrog net and maybe a little scrog up the back wall once all is tested.


    rkymtnman Well-Known Member

    i would change the design of the return pipe/chiller. don't want to reduce that pipe size.

    i built something very similar. 3 27 gallon totes. 2 plants per tote in the grow room and the other tote outside as the main res.

    i'd also use the 3 of the same size totes that way the water level in your main res is the same as in the grow res's.

    i used a wort chiller (homebrewing) in the main res with a separate res and pump for just the chiller. that way you have no nutes in the chiller and it will last longer/no salt buildups.

    zypheruk Well-Known Member

    @rkymtnman thanks for taking the time to respond, much appreciated.
    Ref the totes the 50L res is just wider and longer but the same height as the plants 35L sites, I think that should work ok.
    Will have another look at the return and see what I can slap together.

    rkymtnman likes this.

    rkymtnman Well-Known Member


    i put shower drains (basically just a bulkhead fitting but with a nice grate to keep out hydroton, etc) at the bottom of each tote. they were plumbed into a floor drain with a valve so i could drain it easily.

    in the main res, i used a big submersible pump. that got teed off to each grow tote with heater hose (3/4") which would spray from the top into each grow tote giving a nice waterfall effect. no airstones used at all.
    zypheruk likes this.

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