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I want one!

Looks like a great family project! Subbed.

Nice setup. How long do you veg to get 2lbs a plant?

Dude you are going to have so much light, who needs stinking reflectors ?!

I never had a problem with a pump/power going out, but if I were concerned I would add my air pump to the UPS. Since I have airstones in each bucket, the nutrient filled water would stay oxygenated so plants could theoretically be ok for days (excluding all other issues by losing power).

I used RAW for 1 grow, it was ok. Expensive! Switched to Jacks 3-2-1. Cheaper and just as effective. IMO.

Good women, like fine wines are hard to come by. Mine is very supportive of my grow efforts. The want to see this light in action. Subbed.

What @VegasWinner said, noice!

I don't know, but anything cooked in duck fat is pretty damn tasty!

I don't know what's wrong with this approach. No blow back here. I used similar information/calc from a different web page. Nothing wrong with doing the math up front. Take the guesswork out of it.

If you had multiple grow setups (let's say 2 for argument sake) you could stagger the lighting on/off times to keep a single tank a constant temperature. With some simple lighting controllers (and maybe a little more h/w, like an external radiator to remove extra heat) you could account for day...

Not all airstones are equal. You need to test them individually to what they produce. Two stones from the same manufacturer that are the same size may have vast different air flows. You need to find 2 that with the same flow if using a splitter, otherwise one will dominate. I have a container of...

Nice update. It would be great to add pin/radial heat sinks to this table since many DYIers are using them nowadays.

So what I did that seemed to payoff is to add a top drip to each basket that will run water through the grow media and over the roots until the roots hit the water. This worked much better than manually watering them sever times a day. Either redirect your circulation pump to pour over the top...

My res's had auto fillers with RO water and each had its own PH/PPM monitor. Mind you, I sunk some cash into this setup, but it purred like a finely tuned Ferrari. I didn't swap out res's as often as some do; but also didn't over feed. Another thing, my buckets were all insulated. I made extra...

Way cool! No pun intended.

Yep, had 2 chillers. Best investment I ever made. I dicked around with dyi stuff, but at end of day it was more cost effective to just buy one. Got them off amazon. I think the veg was 1/4HP and the flower was 1/2HP. These are large, but so was my system. I ran an 16 bucket 100gal veg system...

I had a RDWC system doing a perpetual grow, but was a duplicate setup; one for veg and for flower. It was pretty freaking awesome, but some may claim I over engineered it. Everything was duplicated, just bigger in flower. I will have to find some pics and upload. I grew some monster plants with...

Whatever works for ya. It's all good.

It will accurately reflect what you are drawing at the wall, and you have your COB data sheet lying around you can compute a ballpark figure in your head the PAR watts you are getting. Let's say I designed my setup to be 50% efficient, then I just take half the meter reading as my PAR watts...