While looking for an ebb & flow table, I ran across these at the local hardware store.



They are 31"x19" each. Side by side = 31"x57" I plan to use a 1000w over them (approx 12 plants). Would a 600 on a mover be better?

I'm thinking of using a single reservoir tank to flood each table one at a time. That's three pumps down in one reservoir tank.

What are the negatives/positives under this scenario? I'm not planning a staggered growth cycle. It will be: Fill-Grow-Harvest-Clean & Repeat.

I do desire a couple different strains, which may require different harvest dates. Would it screw me up too bad when it's time to flush?

I'd love to go with a grid of 5 tubs. That would be approx 63"x50"



My room is not much bigger than that so I don't know how I would get around to the other side for bug checks and stuff.

I love the mortar tray. Used it till i got a botancare. Why 5?

Novel idea bout 1 reservoir. Another good idea is a 18 gallon rubbermaid res for each tray with they tray just sitting on the res. No reason for a lid, but i use on to keep the rubbermaid more stable. Nice stand a 18 gallon makes. USe a roughneck rubbermaid, sturdier.

or go with what you like. I am using a card table for my botanicare 3x3.

__________________
This is all fictional. I am a writer who has seen too many movies to be original. I pretend to grow weed to let an armed Latina down easy!
http://www.rollitup.org/grow-journal...-rockwool.html

This will be a basement grow. I will have to dig a pit for the nute reservoir so that it is lower than the trays. The trays will be on a pallet, which will be on the ground. I'm doing 3 (or 5) cuz I'm concerned about having to empty (and refill) so many tubs. Small tubs means less water is required. I plan to get another pump and attach it to a LONG hose so that I can just drop it in and send everything out to the lawn, without having to maneuver a 25 gallon bucket around.

Plus, those mortar trays are only $10 each! I'll spend twice that plumbing the whole thing, but I won't have to worry about maintaining a 100 gallons reservoir. I can fill one of the mortar boxes with 10 gallons, then drain it and fill the next one. A 6x5 ebb-flo tray would require about 40 gallons (guessing). That saves a lot on nutrients and bottled water, right?

As long as the trays are level with each other you can simply connect them with some barbed tees or quick connects.

__________________

if you do one reservoir you should stick with one strain so that you can optimize the solution for that one strain. If you want to run multiple strain get more resevoirs.

Nice, go with 5 trays 20sq.ft. w/ 1kw=50watts per foot--1kw will give you some serious yields.....do you have the height for it???? If so use that shit....you said a basement grow right, just making sure

you may need to change the res alot more often, I believe 4-5 L nute solution per plant is what you want......i run 96 plants on 265L res and have to change every 10 days

Those little tubs are primo for a perpetual harvest....ought to rethink that plan

I manually flush if I have 10-20 even 25+ plants coming ready before the rest (i am manually flush about 20 right now).....its a pain but something you have to do till your quiver of strains is dialed in......

Some food for thought......are those trays uv proof?....if not they won't hold up long under HID light which contains enough uva, uvb to degrade plastics in the growroom.

just my 2cents


-OitW

__________________
"You know you can re-use your Hydroton? Nobody here thinks you are."-Clerk 2008
http://www.rollitup.org/hydroponics-...w-journal.html
http://www.rollitup.org/grow-room-de...om-set-up.html

Have one table for half nutes, one table for MAX nutes. and one for flushing. Keep plants mobile in square pots. Wouldnt that work out?

there isn't any drainage for those trays under your plants. You are creating a plumbing nightmare, to save $30.00 worth of nutes?? If you are not going to do a perpetual grow, just run them all at once, this setup may sound neat.......

__________________
http://www.rollitup.org/grow-room-de...p-journal.html

http://www.rollitup.org/grow-journal...perpetual.html

I'm really hoping that I can do 5. I would have no way of accessing that side of the table without crawling through the forest. I have about 5ft clear to the dirt floor. That's why I have to dig out a path / reservoir channel. Maybe I can dig a channel below the pallets and pop up on the other side?!

So, a 20-25 gallon reservoir (4 liter per plant) would serve all 5 tables (one at a time). This may be a stupid question, but how do you know when you need to change the reservoir? Do you just do it every 10 days because that's the schedule? I don't have a problem with changing it every week if that's what is best. But how do you know when it's needed? I had just figured on going with the FF products, add molasses, check the ph, and roll.


I will. Thank you.



How do you manually flush? Should I simply move the pump and drain lines into a separate reservoir of clean fresh water? This is important to consider because I'll have to dig another spot for that tub also.

That's good money OitW (+rep). I'll check to see if it's UV protected. It's for outdoor construction projects, so I would guess that it's rated. I'll check.