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Old 01-07-2019, 01:39 AM #1
QuantumWeed
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DIY 4xRDWC Hydro

This is my @noreason inspired self built RDWC.

4x ~25lt pots



~70lt tank



"Communicating vessels" not working very well with the pots' return line connected this way but I'll use it as it is for now, need to power on/off the water pump every 15min



16L/min Hailea air pump, the smaller air stones work better than big ones



~200m3/h Baluberg in line extractor


Last edited by QuantumWeed; 02-06-2019 at 11:38 PM..
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Old 01-07-2019, 02:13 AM #2
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400w MH 17/7


26/12



1/1




2/1



4/1


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Old 01-07-2019, 02:21 AM #3
tleaf jr.
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Thinking bout building something similar...does the water travel back to the rez without the water pump on.
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Old 01-07-2019, 02:33 AM #4
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Ph was way too low, emptied the system and removed the Cube from the clay pebbles to find out it had no roots coming out of it, solution level has been max high (cube submerged). Will be powering the pump on15min/off15min, due to communicating vessels not working correctly the solution does not return to the tank as fast as it goes into the pots, gonna let the pump draw air to limit the level in the pots as I cannot do less than 15min.


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Old 01-07-2019, 02:34 AM #5
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@tleaf yes, the system levels out fine during the 15min the pump is off.
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Old 01-07-2019, 03:36 AM #6
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$$$

₿₿₿₿₿₿₿₿$$$$$$$$$$€€€€€€


System
  • Tanks, pieps, water filters €150.00
  • Tetra HT 100W Water Heater €18.20
  • Inkbird ITC-308 Thermostat €37.99
  • Inkbird IHC-200 Humidity Controller €39.99
  • DynaSun WOF4005 E27 LightHolder €15.20
  • Mh 400w Kit €102.60
  • GrowBox Mammoth 100x100x180 €96.79
  • Clip Fan €13.40
  • Aolvo LED Grow light bulb 100W €26.21
  • 3x Ultrasonic mistmaker €35.00
  • Hailea ACO-9630 16L/min Air pump €47.90
  • Airstones, airtubes and valves €30.00
  • Maxesla Water pump 20W 220 GPH (1000L/H) €15.99
  • pH / RH / EC(TDS) / TEMP Meters €140.00
  • Timers adn electrical stuff €150.00
  • NetPots €5.00
  • Germination Box 52X42X24CM €25,62
  • 15x Neoprene 7.5cm disks €12.26
  • Mistmaker 3 floater €12.10
  • Cloning Bistoury €3.79
  • PLAT!T watering ring €7.50
-------------------------------------------------------------------
€983.54

Products
  • Atami 40L Clay pebbles €14.90
  • Cellmax ph Down Phosphoric Acid 4L €33.00
  • Cellmax ph Down Nitric Acid 1L €6.40
  • Advanced Hydoponics of Holland Starter Kit €52.55
  • EC/Ph Buffers, electrode cleaner €60.82
  • Clonex mist 10ml €9.90
  • ADV Nutrient ph Perfect pack €29.40
  • Biobizz 20LY €14.71
  • Germination peat disks €3.00
---------------------------------------------------------------------
€224.67
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Old 01-07-2019, 12:42 PM #7
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Nice to see this


I can give you a suggestion...the inline nozzle, the one where the water go inside the bucket.

If there is too much pressure the water stream will hit the pot. Hitting the pot roots will not be happy, you can use a little 6mm L connection to let the water go directly into the bucket without touching roots.


One more thing is to use a filter, the better you can find. This to reduce the amount of very small particle capable of clogging airstones and reducing their power, increasing the resistance for the air stream. I was using an inox filter like 25µ mesh size.
Use cheap airstones and try each one first. Select only the best and avoid the almost clogged ones. Change them often.



The air-pump you use sucks air from the place it's in....if the air it's hot it will raise the water temp...and vice versa


Then...I wish you all the luck for this run and remember it's always better to grow from cut and not from seed. Better only one cut for run...different strains using the same nutritive solution can go a little crazy sometimes.


Green vibes


ps: why don't you use a forum picture's album to upload images? It's easy and it auto-resize the image
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Old 01-07-2019, 02:29 PM #8
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@noreason Thank you for passing by, gonna use all 4 10cm airstones and switch to Ls for the inline.



What should the ma solutionx level in the pots? As I mentioned the level will not be stable but constantly up and down, I figured this will be good for the roots in the medium to get oxygenated.

Thi is the problem with uploading to icmag album:


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Old 01-07-2019, 03:05 PM #9
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I would take the level as high as I can and always take care for an optimal oxygenation. However no problem if some roots stay out.


About the albums ok I got you. Maybe if you're using a phone try to take the picture keeping the phone rotated of 90º, it could maybe work.


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Old 01-08-2019, 09:55 AM #10
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Using this filter on the return line at the moment, easy to clean.
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