DWC table?

[famine]

Has anybody had experience using a DWC table?
I am thinking of trying a 3*4 table with a 15 site tray. I have been having some slime issues in my individual buckets and am worried that I won't be able to keep it clean.

 

[famine]

Any advice on the table? Really concerned about cleaning and possible slime in a large table that wouldn't be easy to get into.
Everything else seems to be buckets or coolers which is what I using for moms.

Id like to make an informed decision before dropping the cash on a couple of tables.

Thanks

 

[Weedler]

An ebb & flow design? I have seen some use trays filled with hydrotron, you pump water up into tray from a reservoir and let it flow out, that would be the easiest way.

I think it would be tough to clean and keep light out, you would have to be able to have it elevated so you can drain it spray it out and then refill all without moving your reservoir.

http://www.youtube.com/watch?v=avipzVVmpL8&feature=related

 

[smithmds]

I'm doing a system about that.



This is a 20 gallon cement mixing tub (Home de Pot).

On top of it is 1.75" thick sytrofoam with 3" holes cut in it.

There's two 250gph water pumps since side it. One for circulation and one heading to my 1/10hp Aqua Chiller.

I have a EcoAir 5 air pump with 8 airstones in it. This might be overkill, but the roots love it.

I've had various slime issues. I resolved them by lowering my res temps to 65f, adding Aqua Shield, and using Sub Culture B & M. The roots really love that setup.

Hope that helps!

 

[famine]

I'm doing a system about that.

View attachment 1372698

This is a 20 gallon cement mixing tub (Home de Pot).
On top of it is 1.75" thick sytrofoam with 3" holes cut in it.
There's two 250gph water pumps since side it. One for circulation and one heading to my 1/10hp Aqua Chiller.
I have a EcoAir 5 air pump with 8 airstones in it. This might be overkill, but the roots love it.
I've had various slime issues. I resolved them by lowering my res temps to 65f, adding Aqua Shield, and using Sub Culture B & M. The roots really love that setup.
Hope that helps!

Great DIY job on the table. I may reconsider my more expensive purchase of a system from the grow shop.
How deep is the tub?
Any additional info would be great.

Regardless I am going to run this all by my grow shop guy so he can make sure I am getting the correct stuff or equivelent product.
He is a DWC fan so I am sure he will help me out getting the right stuff.
I am very much a NooB but jumping in with both feet.

So far I am growing 4 mothers in individual buckets and although they are all looking quite healthy up top, down below they have all have the grey/brown slime to some degree.

1 SLH, 1 SSH, 2 PK.



Would you have an opinion on this solution to the keeping the slime away?
https://www.rollitup.org/dwc-bubbleponics/361430-how-breed-your-own-beneficial.html

Many thanks for your reply.

 

[famine]

An ebb & flow design? I have seen some use trays filled with hydrotron, you pump water up into tray from a reservoir and let it flow out, that would be the easiest way.

I think it would be tough to clean and keep light out, you would have to be able to have it elevated so you can drain it spray it out and then refill all without moving your reservoir.

http://www.youtube.com/watch?v=avipzVVmpL8&feature=related

Well if I can I want to stick with DWC. At least if I can control the slime.

Seen the vid. I may resort to Ebb and Flow.

Thanks

 

[smithmds]

The tub, which you get at Home De Pot for cheap, is 2'x3' and about a foot deep I think. I fill it with about 18 gallon of water (not to the brim obviously)

Here's a picture...don't mind the foam, I just added some Azamax which caused it to foam up due to all air I'm pumping in there with that EcoAir5.



This is what I do when I make a new 18gal DWC chilled res:
1. Sterilize equipment (soaking everything with 3% h202)
2. Add H20
4. Add Pyrosol
5. Add GH 3-part nutes
6. Add Aqua Shield
7. Add Hygrozyme
7. Add Super Thrive and Thrive Alive
8. Add Add Sub Culture B & M
9. Azamax (root aphid issue)

 

[smithmds]

Great DIY job on the table. I may reconsider my more expensive purchase of a system from the grow shop.
How deep is the tub?
Any additional info would be great.

Regardless I am going to run this all by my grow shop guy so he can make sure I am getting the correct stuff or equivelent product.
He is a DWC fan so I am sure he will help me out getting the right stuff.
I am very much a NooB but jumping in with both feet.

So far I am growing 4 mothers in individual buckets and although they are all looking quite healthy up top, down below they have all have the grey/brown slime to some degree.

1 SLH, 1 SSH, 2 PK.

View attachment 1372869View attachment 1372872View attachment 1372873View attachment 1372874

Would you have an opinion on this solution to the keeping the slime away?
https://www.rollitup.org/dwc-bubbleponics/361430-how-breed-your-own-beneficial.html

Many thanks for your reply.

"Would you have an opinion on this solution to the keeping the slime away?"....you have two slimes. Root rot (pythium) and the brown slime algae.

Pictures 1&3 are root rot or pythium. Its the lighter brown slime. (rinse them off and water temps to 65f)

Picture 4 is brown slime algae (dark brown, sometimes chunky if you pull it off with your fingers).... and maybe a little root rot.....refer to some of Heisenberg's posts (a known user on here) for the slime algae.

The solutions for each slime can and should be used together. You'll be set after that.

 

[zem]

i have grown in dwc tables for some time. i did them DIY from wood boards and geomembrane nylon, it's black intended to make outdoor ponds. i used pvc boards with holes as a lid. i used the same tables as flood/drain setup, just fill em with rocks in summers to prevent slime in high temps. in dwc you need very effective bubbling all over the water surface and you need to maintain water temps low around 68-70F. i also used H2O2

 

[famine]

The tub, which you get at Home De Pot for cheap, is 2'x3' and about a foot deep I think. I fill it with about 18 gallon of water (not to the brim obviously)

Here's a picture...don't mind the foam, I just added some Azamax which caused it to foam up due to all air I'm pumping in there with that EcoAir5.

View attachment 1372951

Thanks
I couldn't find a similar tub at my Home Depot. I will purchase from the grow store but I will make my own top like you have done.
Do you get any issues with mold or mildew on the bottom of the styrofoam?

 

[smithmds]

The tub, which you get at Home De Pot for cheap, is 2'x3' and about a foot deep I think. I fill it with about 18 gallon of water (not to the brim obviously)

Here's a picture...don't mind the foam, I just added some Azamax which caused it to foam up due to all air I'm pumping in there with that EcoAir5.

View attachment 1372951

Thanks
I couldn't find a similar tub at my Home Depot. I will purchase from the grow store but I will make my own top like you have done.
Do you get any issues with mold or mildew on the bottom of the styrofoam?

The tubs are cement mixing tubs, they're down past the lumber usually on the end isle or two. Look near the cement mix. I've found them at 4 or 5 home depots, I thought they were all the same for the most part! The styrofoam though...oh its a sick idea, got it from a friend. It's reusable, you can adhere mylar to it, and its sturdy.

The styrofoam is mold resistant, its meant for insulation like walls and what not, so it comes purposefully that way. I've never got mildew on the styrofoam. I've been using it for two years now and I love it. Sometimes you get the green algae that would appear on the top of your rockwool if its exposed, but that stuff is harmless and doesn't compete with your plants.

The bottom of the styrofoam, which would be down towards your res, should be even cleaner than your top for the most part....because there shouldn't be any light getting to it. There's a thin sheet of plastic on the bottom (and top) too, not a lot of stuff can grow on plastic or styrofoam without light. I've had more than my fair share of molds, mildews, algae, snot, shit, tears of pain and none of it has been on the styrofoam or from what I can tell because of the styrofoam.

Cheers

 

[famine]

Many thanks.
Great info