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RDWC- My new system is almost finished

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Sevans
(@sevans1965)
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Hello all, 

Seeds are started (Diary soon to follow), but I still have a few finishing touches left to do on my system.Thought I’d take a minute to share my work-in-progress. My design was influenced by a number of different designs I’ve seen on YouTube.

Lights: Sun System T5 HO for the seedlings. Photontek (aka Lumatek for my European friends) 600W LED for primary Veg & Flower. The driver is outside of the tent.

Extraction: AC Infinity (T6)

Fans: 3 AC infinity Cloudray A6’s  fans.

Water Pump (RDWC): 700 GPH, Magnetic Drive 

Air Pump w/6 stones (RDWC) 715 GPH

Air pump w/2 stones (Mini DWC)  127 GPH

Water Chiller: TBD

My plan is, once the seeds pop in the rockwool and I see roots, I was planning to transfer to net pots and load them into two 5 gal totes ( a mini DWC, air stone in each tote, two net pots per tote). Maybe for a week or two, until the roots are hanging low enough so I can transfer to the RDWC (nute level in the RDWC, I was thinking 2” below the pot). Figure the mini DWC will save some nutes, and something on a smaller scale might be easier for me to address any deficiencies. The RDWC system. This will have six air stones, one in each plant site, and one in each rez. I have nutes entering the plant sites at the top of each bucket via 3/4” lines, with spigots to balance the flow. 3” return to the 13 gal rez. Return line is half way up the bucket, I’m pulling nutes from the bottom (heat rises). 50 gal rez in the corner will be elevated and topped off by my 90 gal/day 7 stage RO (I already installed that long b4 I thought I’d be doing this, I have shitty well water !). The 50 gal rez will keep my 13 gal rez topped off between change-outs.

As a side note, I’m not sure if I’ll need a water chiller, or if I do what size. My lung room where both reservoirs reside is 60 F until early Spring, so for now I will monitor temps, which will help me size an appropriate chiller if needed

 

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4FCE19A8 3EA5 4A37 9ED6 0CF8C11F4788

 

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Topic starter Posted : January 22, 2022 6:00 pm
artmann, Bogan, Shirley boi and 9 people liked
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artmann
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Well done. Looks like it will kick ass.

𓂀

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Posted : January 22, 2022 7:06 pm
Hart, Sevans, BubbleHok and 5 people liked
WoodI2
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@sevans1965, Great start man. You've got a lot of good stuff happening. Have you rinsed and prepped the hydroton if that what your using? Unprepped and it can be hard on the little ones some times. Running a straight pipe will be best. I just change mine back at just 1 1/2 months with the hump. Tried it, didn't like it. I can see where it would work but I'd have to change too much to make that happen. Straight pipe works fine. 

Yes you'll need a chiller eventually, maybe sooner than later. 1/10hp-1/4hp. Once your up and running then you'll know how many gal your actually at. It takes awhile to get it all dialed in. Keep posting and Good Luck!!

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Posted : January 22, 2022 7:44 pm
Bogan, Shirley boi, Hart and 7 people liked
WoodI2
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PXL 20220123 175429186

 Here's the net pot that I was talking about. It has the wider light shield around the top. Yours will work, it's just easier for light leaks. But both will have to be covered anyway, just something to think about. 

Do you have an in-line mess filter. Very important in my book. Helps protect the pump. I place it before the main pump and the chiller pump. Plus I can read what's happening with the system by what the filter looks like. 👍 

PXL 20210317 131345287

 

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Posted : January 24, 2022 12:57 am
Bogan, Hart, twisted1 and 6 people liked
Sevans
(@sevans1965)
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@woodi2 I wasn’t sure what you were getting at earlier about the light band around the pots, thanks for the photo.

Filter- I’ve seen it on other peoples designs, but hadn’t given it much thought, an oversight on my part. You raise a good point- about protecting the pump and being able to monitor system. Since I haven’t finished the plumbing to the rez, I have time to add this in.

TY. 

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Topic starter Posted : January 24, 2022 12:45 pm
Hart, BubbleHok, Stootie and 3 people liked
WoodI2
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@sevans1965, I'm letting you in on all the little things that I had to find in the dark while blindfolded. Oh Bother. lol

The filter is one very important piece to me. This is what it tells me. So done with the filter now.

PXL 20210203 150950925
PXL 20210203 150720947

How big is your tent? I started with 4 plants and now I grow 2, sometimes 3. I can fill my space very well with two. But by all means, grow 4 and see how it goes.

One other thing that I learned was to use No Hub connectors, on your fittings. So they come apart and can be used in different configurations instead of gluing everything. The black slip hubs. I know some of these are easier said than done. 

PXL 20211219 201756818
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Hope this helps man.

PXL 20211219 202116888

 

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Posted : January 24, 2022 3:24 pm
Hart, BubbleHok, Sevans and 4 people liked
Sevans
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Evening all, a few updates— going a little slower than planned (my damn job keeps getting in the way). Plumbing is all done, leak test tomorrow. Just need to raise my 50 gal top-off rez above my 13 gal rez, hook up to my RO, and run the air lines for the stones.

@woodi2, I have an in-line filter between the 13 gal rez, and pump (hard to see in the photo). Not planning on installing  drains at the plant sites, I have a low point with a garden hose hook-up after the pump, any residual water/nute solution I’ll shop-vac out. Need to hit up the legacy market this weekend- good incentive to keep on trucking!

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Honor is simply the morality of superior men.

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Topic starter Posted : February 11, 2022 3:14 am
Bogan, Shirley boi, Hart and 5 people liked
WoodI2
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@sevans1965, looks good man. Fill it with regular water a few times to rinse all the PVC glue residue and what not. You probably already washed things. But use regular water to rinse and also to measure exactly how many gallons in the system. This is the most important thing to know about your system. How many gallon to the bottom of the net pot? How much does one gallon reflect in the depth of the system? Mine is a 3/8" water level change for one gallon. This is the most important thing to know about your system. So start counting. lol I use Accu-pour pitchers the 1L, 1/2gal and 1 gal, from amazon. But figuring out all this will help rinse your system. At least that's what I did because I had to double check everything, god knows don't lose count. LOL I probably filled and drained 4-5 times. But you don't want to waste RO water on this yet. Rinse and wash first with tap, then you'll flush with RO and bennies then fill for real after that. IMO. That's how I do it.

 So you just have to take it out for a test drive and see what happens. Just keep the buckets covered. Turn every thing on and start to getting to know it with just tap water and no plants.

 I mix all my nutz in a 20 gal tub, but I can only stir it with 18 gal in it. I have to have a couple of 5 gal buckets, that only hold 4.5 gal max, to complete a full change. Just saying, measure everything and write it all down. Remember, you'll have another even better idea next week, it doesn't stop!! LOL The learning curve a large, is putting it nicely. 🤣 

 You still will need to inoculate and prep the Hydroton and air stones too. Not to mention the whole system. But leak test first. 👍 

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Posted : February 11, 2022 4:12 am
Hart, monkeydo, Stootie and 3 people liked
WoodI2
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One last thing, you'll need to have a shut-off valve before and after the in-line filter. It's under the water level.

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Posted : February 11, 2022 4:16 am
Hart, monkeydo, Stootie and 3 people liked
Sevans
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Posted by: @woodi2

One last thing, you'll need to have a shut-off valve before and after the in-line filter. It's under the water level.

@woodi2, good point. I have a shut off after the pump, I can add one on the front side, inside the rez. Should work for those occasions between change-outs. Do you find yourself having to open up the filter between change outs?   Asking for a friend Wink  .

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Topic starter Posted : February 11, 2022 4:57 am
Hart, WoodI2, monkeydo and 3 people liked
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Posted by: @sevans1965

Do you find yourself having to open up the filter between change outs?

Yes, I don't let mine to go for more than two days without cleaning. Especially after a water change, thing can get stirred up so dump your water carefully and check the filter afterwards.

If you moved your pump further down the line a little, and came out of your rez at that fitting that you have with 3/4" black vinyl tubing to your in-line filter using barbed fittings, that will give you flexibility to move the filter up and down slightly instead of being so ridge. You can have the shut-off in this vinyl line too. You can work with being ridge but I found I like the flexibility. It doesn't rattle things when I open it. Plus there a splash of water to catch, so I use a plastic dish. The filter needs room to slid in and out too. But if you can't empty it it will clog and then no pump action, and it picks up every day stuff too- Aka= Plant poop. The other valve after the pump is correct.

Don't sweat it man, these are all the little things that will spring up and bit you, and some bit harder than others. LOL Sorry we're just not professional hydroponic system builders, yet. 🤣 

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Posted : February 11, 2022 3:08 pm
Hart, BubbleHok, artmann and 4 people liked
Sevans
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She’s a leaker! Being somewhat realistic, not too surprised.

Need to redo the section coming out of the 13 gal rez, based on @woodi2 suggestions, and the leak tonight would have been less messy!

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The other little detail I completely overlooked was a anti-siphon hole, so only half the rez drains if there is a downstream leak ! Whoops.

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Topic starter Posted : February 12, 2022 2:23 am
Shirley boi, Hart, monkeydo and 4 people liked
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@sevans1965, did you sleep on it and it's now a new day now. Your design starts out one way in the beginning and then through the process of building, it changes into a working system by the time your done. It's frustrating as hell and can be a little costly too. This is not a poor mans sport, as you know. That's why I'm a firm believer in "slip fit, No Hub connectors" or the coupling "Unions" like you've been using. Less glued fittings and more Hub connectors, IMO.

Good luck man, let me know if I can help. It's up hill for now but your almost there. 👍 

 

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Posted : February 12, 2022 3:09 pm
Hart, monkeydo, Stootie and 2 people liked
Sevans
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Posted by: @woodi2

@sevans1965, …………..Your design starts out one way in the beginning and then through the process of building, it changes into a working system by the time your done……………

@woodi2, no different than my job! I design a tool to make a casting, by the time i’m making castings I’m sure as hell not on Rev 1.0. Whether your DIY’ing or not, same process, same trials, same victories at the end of the day. This project/hobby is two fold for me, yeah I want to grow, but the engineer in me wants to build something, and the grow is the end result. My job also cuts into my free time quite a bit (I’m sure a lot of us here fight that battle), so building a system that is easy (easier!?) to manage and maintain is my goal. If something as simple as nute change-outs, or watering etc. become a PITA or a time management issue, it could be a hinderance. That other thread I started, talking about integrating my grow into my home automation system, is the other part of the picture. 

——Whether or not I follow all of your advice or recommendations, I do appreciate your insight, thought provoking! thanks buddy.

Honor is simply the morality of superior men.

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Topic starter Posted : February 12, 2022 4:45 pm
Bogan, Hart, monkeydo and 2 people liked
Sevans
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Posted by: @sevans1965
………….This project/hobby is two fold for me, yeah I want to grow, but the engineer in me wants to build something, and the grow is the end result……… 

I lied— the project is three fold, end result is getting high high high Cool Cool Cool Cool Cool Cool Cool Cool  

Honor is simply the morality of superior men.

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Topic starter Posted : February 12, 2022 5:10 pm
Hart, monkeydo, artmann and 2 people liked
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