Homebrew rigs are dead easy to make…
Tools needed;
1" hole saw
small drill bit slightly larger than the air-line hose diameter
Drill
Hardware needed;
Rubbermaid/sterlite plastic tote with snap-on lid (one gallon size, same water capacity as the AeroGarden 6/7 pod models)
Aquarium air pump (I use a Whisper 60 for my lettuce homebrew)
Air-line tubing one way check valve
air-line tubing (silicone tubing stays flexible longer and is more durable)
airstone (I use a Penn-Plax flat airstone, 10" long)
Some form of lighting, I use a combination of a standard 4’ flourescent shoplite with one plant-specific tube and one full-spectrum tube, and one of my old Compact Flourescent 30" aquarium lightstrip, both lights are hooked up to a surge protector connected to a mechanical timer
Mechanical timer
Aerogrow 6-pod Master Gardener kit or a lettuce kit
Supplies needed;
seeds
some form of fertilizer, hydroponic specific ferts are best if you’re not using an AG master Gardener kit, which comes with ferts
Construction of homebrew rig;
Using the 1" hole saw, bore a series of holes in the lid of the tote, number and layout are up to you, I have eight holes in the lid of my homebrew
using the small drill bit, drill a hole in the top of the lid for the air-line tubing
feed the air-line tubing through the small hole, connect the airstone and the air pump (it might be a good idea to use a check-valve to prevent the air pump from flooding in the event of a power outage)
check the fit of the AG6 long grow baskets, they should fit flush to the surface of the hole
position your choice of lighting system
Setting up the homebrew rig;
fill the tote with water, 3/4 full, make sure at least 1/4" of the AG6 pods are submerged in the water
add ferts to the water
if you’re using a pre-seeded AG6 kit, drop the pods in and put on the domes, if you’re using the Master Gardener kit, put at least 5 seeds, but no more than 7 seeds in per pod (lettuce can take crowding just fine, you won’t need to thin the plants)
set the mechanical timer to give you 12-16 hours of light, and plug in your lighting setup
Sit back and wait, lettuce sprouts quickly in a hydroponic setup, typically you’ll see signs of life in 1-3 days, and start to have harvestable crops in 3 weeks or so
I would reccomend staggering your lettuce pods a week apart, put in 2-3 pods a week, that way when your first set of pods are winding down, your second set will be ready for harvesting, move the second set of pods to the position the first ones were in, move the third set to the second position, and re-seed the first pods and put them in the frontmost position, that way you’ll have lettuce as long as the seeds hold out and temps are compatible, leaf lettuce bolts (goes to seed) quickly in hot weather, Romaine is more heat-resistant
One other thing you might want to do, depending on how self-sufficient you want to be, is let some of your lettuce bolt once it’s reached the end of it’s useful life, let it flower, go to seed, and collect the seeds, sow those seeds for the next crop
If you have a 3 pod or 6 pod AG already, you CAN re-use the peat sponges (depending on what you grew in them previously), your herb pods can be re-used, definitely save the baskets, pull the finished plants from the peat pod, pull off the roots, and let the pod dry out, remove additional dried roots, and the pod will be ready for re-use
You could also use open-cell foam, or rockwool in the baskets, there are garden supply catalogs that also sell the AG style peat pods for use in seed-starter kits, they might need a little trim, but they should work
I always save a few seeds from my cherry tomatoes, and I will let some of my lettuce bolt to seed before I’m finished with those pods, heck, I’ll try to save seeds from whatever I grow in my hydroponic rigs, it’s a way of increasing my self-sufficiency
Now, if I could just find a source for Aerogrow compatible 24 watt 2-pin CF full-spectrum bulbs… if AeroGrow goes out of business, that’s the only weak link in the AG, that it uses a proprietary two-pin full spectrum CF bulb, most of those bulbs use a 4 pin setup, I don’t like being tied down to a single proprietary source for one of the most critical parts of the AG…
Sorry for the rambling, I had a lot of information I wanted to get out to you 