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Quad12 JustMeds RDWC Build

JustMeds

Well-Known Member
This a quick visual list of the things I am using. I plan to keep this updated until this build is complete. Explanations/Testings and such will be carried out throughout the thread as they come up.


This is the tote I am using.

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Inside of tote.

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Tote with hole cut for Net Pot.

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Tote with Net Pot installed.

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This is what we are comparing with.

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Here is the Net Pot.

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The lab calibrated wire depth gauge.

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The hole saw used.

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The 1-1/2" Uni-Seals used.

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Hole cut in tote for Uni-Seal.

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JustMeds

Well-Known Member
Net pot is made for a 5 gallon bucket. Its 6"diax 5"deep Net Pot.

5 Gallon Bucket info:

12" Diameter x 14-1/4" high

7" Bottom of Net Pot to bottom of bucket.

Water Depth:
1 gallon : 2-3/4" Deep
2 gallon : 5-1/2" Deep
3 gallon : 8" Deep
4 gallon : 10-1/2" Deep
5 gallon : 13" Deep

Tote Info:

21-3/4"L x 16"W x 12-1/2"H

7" Bottom of Net Pot to bottom of container

Water Depth:
1/2 gallon to fill corrugations in bottom
1 gallon : 1-1/4" Deep
2 gallon : 2-5/8" Deep
3 gallon : 4" Deep
4 gallon : 5" Deep
5 gallon : 6" Deep
6 gallon : 7" Deep
7 gallon : 8" Deep
8 gallon : 9" Deep

Bottom of 1-1/2" drain pipes is 1-1/8" off bottom. This will leave 1 gallon in container at drain/fluid change. Putting 1" of pea stone in bottom may take this down to 1/2 gallon at drain. Have to get some to try.
 

JustMeds

Well-Known Member
Well I dumped some Pea Stone in bottom of the tote.

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Filled it up with water till it ran out the drains.

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Strained the stones out of the water and measured it. Wound up with just a touch over a quart of water that would be left in bottom of each tote with complete empty. Would need to place a screen over drains to make sure no stones make it to pump.

I then dumped some in one of the Net pots...Hmmm Could this be used as a media. I added the quarter for size comparison. Thinking it would really help with light getting into container, but I plan on placing Reflectix on the top of each with holes just big enough for plant.

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JustMeds

Well-Known Member
Ok, I have a Danner 40122 pump coming next week. I have this one which is close in output. With having 4 sites I drilled 4 1/4" holes in the pipe and placed it on a stand off that has more head that what I will have when in operation. It may be hard to see in the picture but I feel it is going to work great. You have to imagine one of them jets in each site. I put 4 in stand off just so I could test all in one bucket. :thumb:

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Tunkers

Well-Known Member
With the stones I would wind up with 1 gallon of old nutes left in system with a complete change out. Not a lot but is something to think about.
Don't know if it really matters or would create concern but I personally hate the idea of not being able to completely empty a res and give it a good clean. But that's just my OCD personal preference haha
 

JustMeds

Well-Known Member
Don't know if it really matters or would create concern but I personally hate the idea of not being able to completely empty a res and give it a good clean. But that's just my OCD personal preference haha

That is why I was trying to get as much out as possible. Unless the drain is in the low point like in a shower floor there is always going to be some left. All we can do is minimize it as much as possible.
 

JustMeds

Well-Known Member
How I built nozzle for each site.

Hose barb for creating strong jet.

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Cut a small piece of 1/2" pipe, sand outside of barb to fit within pipe. Cut one side of barb off and clean hole up.

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Here they are assembled.

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JustMeds

Well-Known Member
Here is the union I used to hook the pressure line together.

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Here is the first trial test of unit minus the reservoir. Threw the pump in one of the totes to check water levels while it was running.

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Here is a close up of one of the jets working.

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JustMeds

Well-Known Member
With water level at very bottom of bridge pipe each tote will hold 4-1/2 gallons of water. That places the water level 1-1/2" below the bottom of the net pot. I am expecting it to rise about 1/2" when fully hooked up. If that is to close I can place a spacer between the net pot and the lid of the tote.

I don't think I will be using the pea stone in the bottom of the tote's as a volume eliminator. The thing I don't like about the system as it stands is the water that stays in during a drain. I am actively looking for different containers to use that will drain completely. If anyone knows of something I would like to see it.
 

Scrogdawg

Well-Known Member
Yup, thats looking real real good.

The 1/4" jets along with the air stones will probably give you a DO content well in excess of 500% of what the plants require. A case where more is better.

I have the same issue with undrained fluid when I do a res change. Its never affected either grow but has always bothered me. I'm liking your gravel idea and would steal it with your blessing.

One thing I didn't do that I wish I would have, was put a valve on both the pump and return side down stream of the two front totes to be able to completely isolate the back two totes. My thinking is, if I ever had two male plants or two deaths or whatever reason might cause me to finish a grow with two plants, I could isolate half the system to reduce water and nutes. Its worth considering.

I'm really liking your DIY on this, I wished I had done similarly.

Enough from me......Carry on.:thumb:
 

The Germinator

Well-Known Member
Don't know if it really matters or would create concern but I personally hate the idea of not being able to completely empty a res and give it a good clean. But that's just my OCD personal preference haha

That's where a wet vac comes in handy.
 

The Germinator

Well-Known Member
How about a drain in the bottom hooked to the system. Instead of out the sides. Scrogdawg could do this easy since his buckets are off the ground.
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Scrogdawg

Well-Known Member
I don't think I will be using the pea stone in the bottom of the tote's as a volume eliminator. The thing I don't like about the system as it stands is the water that stays in during a drain. I am actively looking for different containers to use that will drain completely. If anyone knows of something I would like to see it.

I still think displacing the water to the bottom of the drain pipe is a good solution, if not pea gravel then maybe some other medium.
 
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